diff --git a/lib/libc/net/resolver.3 b/lib/libc/net/resolver.3
index 16f70067be9d..28392fbbc6d6 100644
--- a/lib/libc/net/resolver.3
+++ b/lib/libc/net/resolver.3
@@ -92,7 +92,7 @@
 .Fa "int anslen"
 .Fc
 .Ft int
-.Fn res_init
+.Fn res_init void
 .Ft int
 .Fo dn_comp
 .Fa "const char *exp_dn"