--- a/xpcom/components/nsNativeComponentLoader.cpp
+++ b/xpcom/components/nsNativeComponentLoader.cpp
@@ -196,18 +196,19 @@ nsNativeModuleLoader::LoadModule(nsILoca
                 NS_BREAK();
             }
         }
 
         free(blist);
     }
 #endif
 
-    data.module = *(mozilla::Module const *const *) PR_FindSymbol(data.library, "NSModule");
-    if (data.module) {
+    void *module = PR_FindSymbol(data.library, "NSModule");
+    if (module) {
+        data.module = *(mozilla::Module const *const *) module;
         if (mLibraries.Put(hashedFile, data))
             return data.module;
     }
     else {
         LOG(PR_LOG_ERROR,
             ("nsNativeModuleLoader::LoadModule(\"%s\") - "
              "Symbol NSModule not found", filePath.get()));
     }