diff --git a/commands/Makefile.inc b/commands/Makefile.inc
index cd46d6db0..26905505e 100644
--- a/commands/Makefile.inc
+++ b/commands/Makefile.inc
@@ -1,3 +1,2 @@
-CPPFLAGS+= -D_MINIX_COMPAT
 LDADD+= -lminlib -lcompat_minix -lasyn -lterminfo
 BINDIR?=/usr/bin
diff --git a/lib/libcompat_minix/Makefile b/lib/libcompat_minix/Makefile
index 2ee3492e4..0869a3edb 100644
--- a/lib/libcompat_minix/Makefile
+++ b/lib/libcompat_minix/Makefile
@@ -1,7 +1,6 @@
 .include <bsd.own.mk>
 
 LIB=	compat_minix
-CPPFLAGS+= -D_MINIX_COMPAT
 USE_SHLIBDIR= yes
 
 .PATH: 	${.CURDIR}