diff --git a/client-adapter/README.md b/client-adapter/README.md
index 47a5dcc4..642bf50b 100644
--- a/client-adapter/README.md
+++ b/client-adapter/README.md
@@ -224,7 +224,7 @@ $BIGINT                   对应PHOENIX里的BIGINT                 8字节
 $TINYINT                  对应PHOENIX里的TINYINT                1字节
 $SMALLINT                 对应PHOENIX里的SMALLINT               2字节
 $FLOAT                    对应PHOENIX里的FLOAT                  4字节
-$DOUBLE                    对应PHOENIX里的DOUBLE                 8字节
+$DOUBLE                   对应PHOENIX里的DOUBLE                 8字节
 $BOOLEAN                  对应PHOENIX里的BOOLEAN                1字节
 $TIME                     对应PHOENIX里的TIME                   8字节
 $DATE                     对应PHOENIX里的DATE                   8字节
@@ -248,4 +248,4 @@ create 'MYTEST.PERSON', {NAME=>'CF'}
 java -jar canal-adapter-launcher.jar
 ```
 #### 验证
-修改mysql mytest.person表的数据, 将会自动同步到HBase的MYTEST.PERSON表下面, 并会打出DML的log
\ No newline at end of file
+修改mysql mytest.person表的数据, 将会自动同步到HBase的MYTEST.PERSON表下面, 并会打出DML的log