diff --git a/make/proj.mk.in b/make/proj.mk.in
index cc7934a3..6ad41434 100644
--- a/make/proj.mk.in
+++ b/make/proj.mk.in
@@ -50,10 +50,8 @@ endif
 
 LDFLAGS += -lytools
 
-ifeq ($(TARGET),mingw)
 CFLAGS           += -D_USRDLL -DYTOOLS_EXPORTS
 CPPFLAGS         += -D_USRDLL -DYTOOLS_EXPORTS
-endif
 
 ARCH = @ARCH@