diff --git a/include/llvm/Config/alloca.h b/include/llvm/Config/alloca.h
index 7351aa4dc86..13631e5a705 100644
--- a/include/llvm/Config/alloca.h
+++ b/include/llvm/Config/alloca.h
@@ -28,7 +28,7 @@
 #define alloca _alloca
 #elif defined(HAVE_ALLOCA_H)
 #include <alloca.h>
-#elif defined(__MINGW_H) && defined(HAVE_MALLOC_H)
+#elif defined(__MINGW) && defined(HAVE_MALLOC_H)
 #include <malloc.h>
 #elif !defined(__GNUC__)
 #	ifdef _AIX