1 files changed, 1 insertions, 1 deletions
diff --git a/src/map.h b/src/map.h
index 0bec3ef4..7f75afea 100644
--- a/src/map.h
+++ b/src/map.h
@@ -221,7 +221,7 @@ class Map : public Properties
         /**
          * Finds the tile set that a tile with the given global id is part of.
          */
-        Tileset *getTilesetWithGid(int gid) const;
+        Tileset *getTilesetWithGid(unsigned gid) const;
 
         /**
          * Get tile reference.