diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index 9d8577380ba..a22d12ed86f 100644
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -853,7 +853,7 @@ namespace llvm {
   template<typename T>
   inline T **unwrap(LLVMValueRef *Vals, unsigned Length) {
     #if DEBUG
-    for (LLVMValueRef *I = Vals, E = Vals + Length; I != E; ++I)
+    for (LLVMValueRef *I = Vals, *E = Vals + Length; I != E; ++I)
       cast<T>(*I);
     #endif
     return reinterpret_cast<T**>(Vals);