diff --git a/fpdfsdk/src/jsapi/fxjs_v8.cpp b/fpdfsdk/src/jsapi/fxjs_v8.cpp
index 4e069d5..ed8e2e8 100644
--- a/fpdfsdk/src/jsapi/fxjs_v8.cpp
+++ b/fpdfsdk/src/jsapi/fxjs_v8.cpp
@@ -351,12 +351,14 @@
         pObjDef->m_pDestructor(pObj);
       FXJS_FreePrivate(pObj);
     }
-    delete pObjDef;
   }
 
   if (pIsolate == g_isolate && --g_isolate_ref_count > 0)
     return;
 
+  for (int i = 0; i < maxID; ++i)
+    delete CFXJS_ObjDefinition::ForID(pIsolate, i);
+
   pIsolate->SetData(g_embedderDataSlot, nullptr);
   delete pData;
 }