diff --git a/cf/roken-frag.m4 b/cf/roken-frag.m4
index c4103ffe4..c52df933e 100644
--- a/cf/roken-frag.m4
+++ b/cf/roken-frag.m4
@@ -163,8 +163,10 @@ AC_CHECK_FUNCS([				\
 	asprintf				\
 	cgetent					\
 	getconfattr				\
+	getprogname				\
 	getrlimit				\
 	getspnam				\
+	setprogname				\
 	strsvis					\
 	strunvis				\
 	strvis					\