diff --git a/linkmap.c b/linkmap.c
index a9decb6..f7357f6 100644
--- a/linkmap.c
+++ b/linkmap.c
@@ -111,5 +111,7 @@ char* haggis_linkmap_get_or_add(haggis_linkmap *map, ino_t inode, char * path) {
         pthread_mutex_unlock(map->mutex);
         return target;
     }
+    // todo: if buckets[idx] has a different value stored, loop until we find an
+    // empty slot or a slot with the correct value (whichever is first)
     return NULL;
 }