diff --git a/project/extras.mk b/project/extras.mk
index 4641896..f405f6b 100644
--- a/project/extras.mk
+++ b/project/extras.mk
@@ -1,7 +1,7 @@
 CFLAGS_SHARED_ATTR 	+= -DDALIST_EXPORT
 CFLAGS_STATIC_ATTR 	+= -DDALIST_STATIC
 
-ifeq ($(OS_BINFMT),PE)
+ifeq ($(CC_BINFMT),PE)
 	CFLAGS_CONFIG 	+= -D_MIDIPIX_FREESTANDING -D__NT$(HOST_BITS)
 	CFLAGS_CONFIG 	+= -UWIN32 -U_WIN32 -U__WIN32 -U__WIN32__
 	CFLAGS_CONFIG 	+= -UWIN64 -U_WIN64 -U__WIN64 -U__WIN64__