diff --git a/Assets/Plugins/iOS/HotfixFlags.cpp b/Assets/Plugins/iOS/HotfixFlags.cpp
index 645149710..d84c8f9b1 100644
--- a/Assets/Plugins/iOS/HotfixFlags.cpp
+++ b/Assets/Plugins/iOS/HotfixFlags.cpp
@@ -1,37 +1,47 @@
 #include <stddef.h>
 #include <stdlib.h>
+#include <string.h>
 
-int* xlua_hotfix_flags = NULL;
+bool* xlua_hotfix_flags = NULL;
 int xlua_hotfix_flags_len = 0;
 
-extern "C" {
+extern "C"
+{
+    int xlua_get_hotfix_flag(int idx)
+    {
+        if (idx >= xlua_hotfix_flags_len)
+        {
+            return 0;
+        }
+        else
+        {
+            return xlua_hotfix_flags[idx];
+        }
+    }
 
-int xlua_get_hotfix_flag(int idx) {
-	if (idx >= xlua_hotfix_flags_len) {
-		return 0;
-	} else {
-		return xlua_hotfix_flags[idx];
-	}
-}
+    void xlua_set_hotfix_flag(int idx, int flag)
+    {
+        if (idx >= xlua_hotfix_flags_len)
+        {
+            bool* new_hotfix_flags = (bool*)malloc(idx + 1);
 
-void xlua_set_hotfix_flag(int idx, int flag) {
-	int i = 0;
-        int* new_hotfix_flags = NULL;
-	if (idx >= xlua_hotfix_flags_len) {
-		if (xlua_hotfix_flags == NULL) {
-			xlua_hotfix_flags = (int*)malloc((idx + 1) * sizeof(int));
-		} else {
-			new_hotfix_flags = (int*)realloc(xlua_hotfix_flags, (idx + 1) * sizeof(int));
-                        if (NULL == new_hotfix_flags) { // just skip operation
-                            return;
-                        }
-                        xlua_hotfix_flags = new_hotfix_flags;
-		}
-		for(i = xlua_hotfix_flags_len; i < (idx + 1); i++) {
-			xlua_hotfix_flags[i] = 0;
-		}
-                xlua_hotfix_flags_len = idx + 1;
-	} 
-	xlua_hotfix_flags[idx] = flag;
-}
+            if (xlua_hotfix_flags == NULL)
+            {
+                memset(new_hotfix_flags, 0, (idx + 1));
+                xlua_hotfix_flags = new_hotfix_flags;
+            }
+            else
+            {
+                memcpy(new_hotfix_flags, xlua_hotfix_flags, xlua_hotfix_flags_len);
+                memset(new_hotfix_flags + xlua_hotfix_flags_len, 0, (idx + 1 - xlua_hotfix_flags_len));
+                bool* tmp = xlua_hotfix_flags;
+                xlua_hotfix_flags = new_hotfix_flags;
+                free(tmp);
+            }
+
+            xlua_hotfix_flags_len = idx + 1;
+        }
+
+        xlua_hotfix_flags[idx] = flag;
+    }
 }
diff --git a/Assets/XLua/Src/DelegateBridge.cs b/Assets/XLua/Src/DelegateBridge.cs
index c0e8eb0b1..900147291 100644
--- a/Assets/XLua/Src/DelegateBridge.cs
+++ b/Assets/XLua/Src/DelegateBridge.cs
@@ -116,10 +116,21 @@ public static void Set(int idx, DelegateBridge val)
                 }
                 DelegateBridge.DelegateBridgeList = newList;
             }
+
+#if (UNITY_IPHONE || UNITY_TVOS) && !UNITY_EDITOR
+            if (val == null)
+            {
+                xlua_set_hotfix_flag(idx, false);
+            }
+#endif
             DelegateBridge.DelegateBridgeList[idx] = val;
 #if (UNITY_IPHONE || UNITY_TVOS) && !UNITY_EDITOR
-            xlua_set_hotfix_flag(idx, val != null);
+            if (val != null)
+            {
+                xlua_set_hotfix_flag(idx, true);
+            }
 #endif
+
         }
     }