1 files changed, 1 insertions, 1 deletions
diff --git a/src/map.c b/src/map.c
index 810a400..9174cf4 100644
--- a/src/map.c
+++ b/src/map.c
@@ -420,7 +420,7 @@ bool_t
 map_match_id(struct plugin_state *state,
 	     const char *domain_name, const char *map_name,
 	     bool_t *secure,
-	     const char *in_id, int in_key_index,
+	     const char *in_id, unsigned int in_key_index,
 	     unsigned int *key_len, char **key,
 	     unsigned int *value_len, char **value,
 	     const char **id)