1 files changed, 1 insertions, 2 deletions
diff --git a/src/tileset.h b/src/tileset.h
index 6af69235..625fac1b 100644
--- a/src/tileset.h
+++ b/src/tileset.h
@@ -44,8 +44,7 @@ class Tileset : public ImageSet
         /**
          * Returns the first gid.
          */
-        int
-        getFirstGid()
+        int getFirstGid() const
         {
             return mFirstGid;
         }