diff --git a/laws-modules/src/main/java/com/jero/modules/compare/utils/DiffUtils.java b/laws-modules/src/main/java/com/jero/modules/compare/utils/DiffUtils.java
index 3f2f2a77..46068590 100644
--- a/laws-modules/src/main/java/com/jero/modules/compare/utils/DiffUtils.java
+++ b/laws-modules/src/main/java/com/jero/modules/compare/utils/DiffUtils.java
@@ -2285,11 +2285,17 @@ public class DiffUtils {
         for (String key:replaceMap2.keySet()) {
             RResultStr = RResultStr.replace(key,replaceMap2.get(key));
         }
+        LResultStr = updataErrorDiff(LResultStr);
+        RResultStr = updataErrorDiff(RResultStr);
         result.add(LResultStr);
         result.add(RResultStr);
         return result;
     }
 
+    private String updataErrorDiff(String str) {
+        return str.replace("<<span class=\"delClass\">", "<span class=\"delClass\"><")
+                .replace("<</span>", "</span><");
+    }
 
     public static void main(String[] args){
         DiffUtils dmp = new DiffUtils();