diff --git a/mozilla/modules/plugin/base/src/nsPluginHostImpl.cpp b/mozilla/modules/plugin/base/src/nsPluginHostImpl.cpp
index f7c32ec50bb..1ab9d85c563 100644
--- a/mozilla/modules/plugin/base/src/nsPluginHostImpl.cpp
+++ b/mozilla/modules/plugin/base/src/nsPluginHostImpl.cpp
@@ -415,7 +415,7 @@ nsActivePlugin::~nsActivePlugin()
       mInstance->Destroy();
 
     NS_RELEASE(mInstance);
-    NS_RELEASE(mPeer);
+    NS_IF_RELEASE(mPeer);
   }
   PL_strfree(mURL);
 }