diff --git a/usr.bin/getconf/Makefile b/usr.bin/getconf/Makefile
index 53a7bac0d86f..23122b37c992 100644
--- a/usr.bin/getconf/Makefile
+++ b/usr.bin/getconf/Makefile
@@ -1,13 +1,14 @@
 #	$FreeBSD$
 
 PROG=	getconf
 
 SRCS=	confstr.c getconf.c pathconf.c sysconf.c
+CFLAGS+= -I${.CURDIR}
 CLEANFILES+= confstr.c pathconf.c sysconf.c
 
 .SUFFIXES: .gperf
 
 .gperf.c:
 	gperf -t -L ANSI-C -C -k 1,2,7-10,21,'$$' ${.IMPSRC} >${.TARGET}
 
 .include <bsd.prog.mk>