diff --git a/zsnes/src/uic.c b/zsnes/src/uic.c
index cc47adb1..d27d0354 100644
--- a/zsnes/src/uic.c
+++ b/zsnes/src/uic.c
@@ -21,8 +21,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 //C++ style code in C
 #define bool unsigned char
-#define TRUE 1
-#define FALSE 0
+#define true 1
+#define false 0
 
 extern void outofmemory();
 extern unsigned char *spc7110romptr;