diff --git a/quickjs.c b/quickjs.c
index bb15eea..8c06b06 100644
--- a/quickjs.c
+++ b/quickjs.c
@@ -9807,6 +9807,15 @@ void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id)
     return p;
 }
 
+void *JS_GetOpaque3(JSValueConst obj)
+{
+    JSObject *p;
+    if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+        return NULL;
+    p = JS_VALUE_GET_OBJ(obj);
+    return p->u.opaque;
+}
+
 #define HINT_STRING  0
 #define HINT_NUMBER  1
 #define HINT_NONE    2
diff --git a/quickjs.h b/quickjs.h
index 0d4a154..540aa43 100644
--- a/quickjs.h
+++ b/quickjs.h
@@ -807,6 +807,7 @@ int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj,
 void JS_SetOpaque(JSValue obj, void *opaque);
 void *JS_GetOpaque(JSValueConst obj, JSClassID class_id);
 void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id);
+void *JS_GetOpaque3(JSValueConst obj);
 
 /* 'buf' must be zero terminated i.e. buf[buf_len] = '\0'. */
 JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len,