diff --git a/lib/hash.h b/lib/hash.h
index 00953ff3b3..6fbdc67cc4 100644
--- a/lib/hash.h
+++ b/lib/hash.h
@@ -103,7 +103,7 @@ struct hash {
  *
  * hash_cmp
  *    comparison function used for resolving collisions; when called with two
- *    data items, should return nonzero if the two items are equal and 0
+ *    data items, should return true if the two items are equal and false
  *    otherwise
  *
  * name