diff --git a/src/network/networkd-routing-policy-rule.c b/src/network/networkd-routing-policy-rule.c
index 1c2c28b02a..8203f87c9f 100644
--- a/src/network/networkd-routing-policy-rule.c
+++ b/src/network/networkd-routing-policy-rule.c
@@ -199,11 +199,11 @@ static int routing_policy_rule_compare_func(const RoutingPolicyRule *a, const Ro
                         return r;
 
                 r = strcmp_ptr(a->iif, b->iif);
-                if (!r)
+                if (r != 0)
                         return r;
 
                 r = strcmp_ptr(a->oif, b->oif);
-                if (!r)
+                if (r != 0)
                         return r;
 
                 return 0;