diff --git a/Makefile b/Makefile
index 219dfd07ad..40dcc7dc34 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ OS_TYPE = -DCYGWIN
 CFLAGS = $(OPT) -Wall -DFD_SETSIZE=4096 -I../common $(PACKETDEF) $(OS_TYPE)
 else
 OS_TYPE =
-CFLAGS = $(OPT) -DTWILIGHT -Wall -I../common $(PACKETDEF) $(OS_TYPE)
+CFLAGS = $(OPT) -Wall -I../common $(PACKETDEF) $(OS_TYPE)
 endif
 
 MYSQLFLAG_INCLUDE_DEFAULT = /usr/local/include/mysql