diff --git a/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLogFormatterFactory.java b/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLogFormatterFactory.java
index 750469dfb09..630e0f58ba7 100644
--- a/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLogFormatterFactory.java
+++ b/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLogFormatterFactory.java
@@ -93,7 +93,8 @@ public class StructuredLogFormatterFactory<E> {
 					new JsonMembersCustomizerBuilder(properties).build());
 			allAvailableParameters.add(StructuredLoggingJsonMembersCustomizer.Builder.class,
 					new JsonMembersCustomizerBuilder(properties));
-			allAvailableParameters.add(StackTracePrinter.class, (type) -> getStackTracePrinter(properties));
+			allAvailableParameters.add(StackTracePrinter.class,
+					(type) -> getStackTracePrinter(properties, environment));
 			allAvailableParameters.add(ContextPairs.class, (type) -> getContextPairs(properties));
 			if (availableParameters != null) {
 				availableParameters.accept(allAvailableParameters);
@@ -103,8 +104,10 @@ public class StructuredLogFormatterFactory<E> {
 		commonFormatters.accept(this.commonFormatters);
 	}
 
-	private @Nullable StackTracePrinter getStackTracePrinter(@Nullable StructuredLoggingJsonProperties properties) {
-		return (properties != null && properties.stackTrace() != null) ? properties.stackTrace().createPrinter() : null;
+	private @Nullable StackTracePrinter getStackTracePrinter(@Nullable StructuredLoggingJsonProperties properties,
+			Environment environment) {
+		return (properties != null && properties.stackTrace() != null)
+				? properties.stackTrace().createPrinter(environment) : null;
 	}
 
 	private ContextPairs getContextPairs(@Nullable StructuredLoggingJsonProperties properties) {
diff --git a/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLoggingJsonProperties.java b/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLoggingJsonProperties.java
index 6ff05dde52f..0b14d2b9e4c 100644
--- a/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLoggingJsonProperties.java
+++ b/core/spring-boot/src/main/java/org/springframework/boot/logging/structured/StructuredLoggingJsonProperties.java
@@ -102,7 +102,7 @@ record StructuredLoggingJsonProperties(Set<String> include, Set<String> exclude,
 			@Nullable Integer maxThrowableDepth, @Nullable Boolean includeCommonFrames,
 			@Nullable Boolean includeHashes) {
 
-		@Nullable StackTracePrinter createPrinter() {
+		@Nullable StackTracePrinter createPrinter(Environment environment) {
 			String name = sanitizePrinter();
 			if ("loggingsystem".equals(name) || (name.isEmpty() && !hasAnyOtherProperty())) {
 				return null;
@@ -112,9 +112,10 @@ record StructuredLoggingJsonProperties(Set<String> include, Set<String> exclude,
 				return standardPrinter;
 			}
 			Assert.state(printer() != null, "'printer' must not be null");
-			return (StackTracePrinter) new Instantiator<>(StackTracePrinter.class,
-					(parameters) -> parameters.add(StandardStackTracePrinter.class, standardPrinter))
-				.instantiate(printer());
+			return (StackTracePrinter) new Instantiator<>(StackTracePrinter.class, (parameters) -> {
+				parameters.add(StandardStackTracePrinter.class, standardPrinter);
+				parameters.add(Environment.class, environment);
+			}).instantiate(printer());
 		}
 
 		boolean hasCustomPrinter() {
diff --git a/core/spring-boot/src/test/java/org/springframework/boot/logging/structured/StructuredLoggingJsonPropertiesTests.java b/core/spring-boot/src/test/java/org/springframework/boot/logging/structured/StructuredLoggingJsonPropertiesTests.java
index 54bca909f75..a63306f300c 100644
--- a/core/spring-boot/src/test/java/org/springframework/boot/logging/structured/StructuredLoggingJsonPropertiesTests.java
+++ b/core/spring-boot/src/test/java/org/springframework/boot/logging/structured/StructuredLoggingJsonPropertiesTests.java
@@ -35,6 +35,7 @@ import org.springframework.boot.logging.structured.StructuredLoggingJsonProperti
 import org.springframework.boot.logging.structured.StructuredLoggingJsonProperties.StackTrace;
 import org.springframework.boot.logging.structured.StructuredLoggingJsonProperties.StackTrace.Root;
 import org.springframework.boot.logging.structured.StructuredLoggingJsonProperties.StructuredLoggingJsonPropertiesRuntimeHints;
+import org.springframework.core.env.Environment;
 import org.springframework.mock.env.MockEnvironment;
 import org.springframework.util.ClassUtils;
 
@@ -116,44 +117,45 @@ class StructuredLoggingJsonPropertiesTests {
 		@Test
 		void createPrinterWhenEmptyReturnsNull() {
 			StackTrace properties = new StackTrace(null, null, null, null, null, null);
-			assertThat(properties.createPrinter()).isNull();
+			assertThat(properties.createPrinter(new MockEnvironment())).isNull();
 		}
 
 		@Test
 		void createPrinterWhenNoPrinterAndNotEmptyReturnsStandard() {
 			StackTrace properties = new StackTrace(null, Root.LAST, null, null, null, null);
-			assertThat(properties.createPrinter()).isInstanceOf(StandardStackTracePrinter.class);
+			assertThat(properties.createPrinter(new MockEnvironment())).isInstanceOf(StandardStackTracePrinter.class);
 		}
 
 		@Test
 		void createPrinterWhenLoggingSystemReturnsNull() {
 			StackTrace properties = new StackTrace("logging-system", null, null, null, null, null);
-			assertThat(properties.createPrinter()).isNull();
+			assertThat(properties.createPrinter(new MockEnvironment())).isNull();
 		}
 
 		@Test
 		void createPrinterWhenLoggingSystemRelaxedReturnsNull() {
 			StackTrace properties = new StackTrace("LoggingSystem", null, null, null, null, null);
-			assertThat(properties.createPrinter()).isNull();
+			assertThat(properties.createPrinter(new MockEnvironment())).isNull();
 		}
 
 		@Test
 		void createPrinterWhenStandardReturnsStandardPrinter() {
 			StackTrace properties = new StackTrace("standard", null, null, null, null, null);
-			assertThat(properties.createPrinter()).isInstanceOf(StandardStackTracePrinter.class);
+			assertThat(properties.createPrinter(new MockEnvironment())).isInstanceOf(StandardStackTracePrinter.class);
 		}
 
 		@Test
 		void createPrinterWhenStandardRelaxedReturnsStandardPrinter() {
 			StackTrace properties = new StackTrace("STANDARD", null, null, null, null, null);
-			assertThat(properties.createPrinter()).isInstanceOf(StandardStackTracePrinter.class);
+			assertThat(properties.createPrinter(new MockEnvironment())).isInstanceOf(StandardStackTracePrinter.class);
 		}
 
 		@Test
 		void createPrinterWhenStandardAppliesCustomizations() {
 			Exception exception = TestException.create();
 			StackTrace properties = new StackTrace(null, Root.FIRST, 300, 2, true, false);
-			StandardStackTracePrinter printer = (StandardStackTracePrinter) properties.createPrinter();
+			StandardStackTracePrinter printer = (StandardStackTracePrinter) properties
+				.createPrinter(new MockEnvironment());
 			assertThat(printer).isNotNull();
 			printer = printer.withLineSeparator("\n");
 			String actual = TestException.withoutLineNumbers(printer.printStackTraceToString(exception));
@@ -169,7 +171,7 @@ class StructuredLoggingJsonPropertiesTests {
 		void createPrinterWhenStandardWithHashesPrintsHash() {
 			Exception exception = TestException.create();
 			StackTrace properties = new StackTrace(null, null, null, null, null, true);
-			StackTracePrinter printer = properties.createPrinter();
+			StackTracePrinter printer = properties.createPrinter(new MockEnvironment());
 			assertThat(printer).isNotNull();
 			String actual = printer.printStackTraceToString(exception);
 			assertThat(actual).containsPattern("<#[0-9a-z]{8}>");
@@ -179,7 +181,7 @@ class StructuredLoggingJsonPropertiesTests {
 		void createPrinterWhenClassNameCreatesPrinter() {
 			Exception exception = TestException.create();
 			StackTrace properties = new StackTrace(TestStackTracePrinter.class.getName(), null, null, null, true, null);
-			StackTracePrinter printer = properties.createPrinter();
+			StackTracePrinter printer = properties.createPrinter(new MockEnvironment());
 			assertThat(printer).isNotNull();
 			assertThat(printer.printStackTraceToString(exception)).isEqualTo("java.lang.RuntimeException: exception");
 		}
@@ -187,9 +189,11 @@ class StructuredLoggingJsonPropertiesTests {
 		@Test
 		void createPrinterWhenClassNameInjectsConfiguredPrinter() {
 			Exception exception = TestException.create();
+			MockEnvironment environment = new MockEnvironment();
+			environment.setProperty("stracktracelineseparator", "!");
 			StackTrace properties = new StackTrace(TestStackTracePrinterCustomized.class.getName(), Root.FIRST, 300, 2,
 					true, null);
-			StackTracePrinter printer = properties.createPrinter();
+			StackTracePrinter printer = properties.createPrinter(environment);
 			assertThat(printer).isNotNull();
 			String actual = TestException.withoutLineNumbers(printer.printStackTraceToString(exception));
 			assertThat(actual).isEqualTo("RuntimeExceptionroot!	at org.springfr...");
@@ -242,9 +246,9 @@ class StructuredLoggingJsonPropertiesTests {
 
 		private final StandardStackTracePrinter printer;
 
-		TestStackTracePrinterCustomized(StandardStackTracePrinter printer) {
+		TestStackTracePrinterCustomized(StandardStackTracePrinter printer, Environment environment) {
 			this.printer = printer.withMaximumLength(40)
-				.withLineSeparator("!")
+				.withLineSeparator(environment.getProperty("stracktracelineseparator", "\n"))
 				.withFormatter((throwable) -> ClassUtils.getShortName(throwable.getClass()) + throwable.getMessage());
 		}