diff --git a/game/Makefile b/game/Makefile
index 02f3fc3..1a3b69e 100644
--- a/game/Makefile
+++ b/game/Makefile
@@ -17,7 +17,7 @@ ifeq ($(TARGET), win32)
 endif
 ifeq ($(TARGET), win64)
   PLATFORM=mingw32
-  ARCH=x86_64
+  ARCH=x64
   CC=x86_64-w64-mingw32-gcc
   CFLAGS+=-m64
 endif