diff --git a/lib/libcurses/Makefile b/lib/libcurses/Makefile
index aee5f0163..c229adc76 100644
--- a/lib/libcurses/Makefile
+++ b/lib/libcurses/Makefile
@@ -5,8 +5,6 @@
 
 WARNS=	2
 
-# LSC MINIX, for termios.h ...
-CPPFLAGS+=-D__NBSD_LIBC
 CPPFLAGS+=-I${.CURDIR} -I${NETBSDSRCDIR}/lib/libterminfo
 .if defined(DEBUG_CURSES)
 CPPFLAGS+=-g -DDEBUG