diff --git a/include/llvm/User.h b/include/llvm/User.h
index 310d356a53e..bd3eb5850b9 100644
--- a/include/llvm/User.h
+++ b/include/llvm/User.h
@@ -87,8 +87,7 @@ public:
   // Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const User *) { return true; }
   static inline bool classof(const Value *V) {
-    return isa<Instruction>(V) || isa<GlobalVariable>(V) ||
-           isa<Constant>(V);
+    return isa<Instruction>(V) || isa<Constant>(V);
   }
 };