diff --git a/servconf.c b/servconf.c
index 7fc3551..53d81fb 100644
--- a/servconf.c
+++ b/servconf.c
@@ -736,7 +736,7 @@
 valid_rdomain(const char *name)
 {
 #if defined(HAVE_SYS_VALID_RDOMAIN)
-	return valid_rdomain(name)
+	return sys_valid_rdomain(name);
 #elif defined(__OpenBSD__)
 	const char *errstr;
 	long long num;