diff --git a/lib/odp-util.c b/lib/odp-util.c
index 9a705cffa..d1c263a2b 100644
--- a/lib/odp-util.c
+++ b/lib/odp-util.c
@@ -7541,7 +7541,7 @@ parse_key_and_mask_to_match(const struct nlattr *key, size_t key_len,
     enum odp_key_fitness fitness;

     fitness = odp_flow_key_to_flow(key, key_len, &match->flow, NULL);
-    if (fitness) {
+    if (fitness == ODP_FIT_ERROR) {
         /* This should not happen: it indicates that
          * odp_flow_key_from_flow() and odp_flow_key_to_flow() disagree on
          * the acceptable form of a flow.  Log the problem as an error,
@@ -7562,7 +7562,7 @@ parse_key_and_mask_to_match(const struct nlattr *key, size_t key_len,

     fitness = odp_flow_key_to_mask(mask, mask_len, &match->wc, &match->flow,
                                    NULL);
-    if (fitness) {
+    if (fitness == ODP_FIT_ERROR) {
         /* This should not happen: it indicates that
          * odp_flow_key_from_mask() and odp_flow_key_to_mask()
          * disagree on the acceptable form of a mask.  Log the problem