diff --git a/config.mk b/config.mk
index c50af69..477f4fc 100644
--- a/config.mk
+++ b/config.mk
@@ -29,4 +29,4 @@ LDFLAGS = -s ${LIBS}
 CPPFLAGS = -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_BSD_SOURCE ${INCS}
 
 # OpenBSD 5.9+: use pledge(2)
-#CPPFLAGS += -DUSE_PLEDGE
+#CPPFLAGS = -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_BSD_SOURCE -DUSE_PLEDGE ${INCS}