diff --git a/accessible/ipc/ProxyAccessible.h b/accessible/ipc/ProxyAccessible.h
index c5fff888082..126e9bfc1cc 100644
--- a/accessible/ipc/ProxyAccessible.h
+++ b/accessible/ipc/ProxyAccessible.h
@@ -67,8 +67,7 @@ public:
 
 protected:
   ProxyAccessible() :
-    mParent(nullptr), mDoc(nullptr), mWrapper(0), mID(0)
-  { MOZ_COUNT_CTOR(ProxyAccessible); }
+    mParent(nullptr), mDoc(nullptr) { MOZ_COUNT_CTOR(ProxyAccessible); }
 
 protected:
   ProxyAccessible* mParent;