diff --git a/client/src/main/java/com/alibaba/nacos/client/config/impl/ConfigChangeEvent.java b/client/src/main/java/com/alibaba/nacos/client/config/impl/ConfigChangeEvent.java
index ec0f25f5d65..1bc81d5797e 100644
--- a/client/src/main/java/com/alibaba/nacos/client/config/impl/ConfigChangeEvent.java
+++ b/client/src/main/java/com/alibaba/nacos/client/config/impl/ConfigChangeEvent.java
@@ -143,7 +143,7 @@ private void buildFlattenedMap(Map<String, Object> result, Map<String, Object> s
     }
 
     static final String PROPERTIES_SUFFIX = ".properties";
-    static final String YAML_SUFFIX = ".ymal";
+    static final String YAML_SUFFIX = ".yaml";
     static final String YML_SUFFIX = ".yml";
 }