diff --git a/reactos/subsys/system/winefile/Makefile.MinGW b/reactos/subsys/system/winefile/Makefile.MinGW
index a26a5f17c00..7dead8ae38c 100644
--- a/reactos/subsys/system/winefile/Makefile.MinGW
+++ b/reactos/subsys/system/winefile/Makefile.MinGW
@@ -5,7 +5,7 @@
 CC = gcc
 LD = gcc
 
-CFLAGS	= -DUNICODE -D_WIN32_IE=0x0501 -D_WIN32_WINNT=0x0501
+CFLAGS	= -D_WIN32_IE=0x0501 -D_WIN32_WINNT=0x0501
 RCFLAGS	= -D__WINDRES__
 LFLAGS	= -Wl,--subsystem,windows