diff --git a/src/main/java/com/zhongan/devpilot/util/CommentUtil.java b/src/main/java/com/zhongan/devpilot/util/CommentUtil.java
index 0cde077a..3e6a38b2 100644
--- a/src/main/java/com/zhongan/devpilot/util/CommentUtil.java
+++ b/src/main/java/com/zhongan/devpilot/util/CommentUtil.java
@@ -29,7 +29,7 @@ public static boolean isSingleLineComment(String text, Language language) {
     }
 
     public static boolean containsComment(String text, Language language) {
-        if (text == null) return false;
+        if (text == null || language == null) return false;
         return isMultiLineComment(text, language) || isSingleLineComment(text, language);
     }