1 files changed, 1 insertions, 1 deletions
diff --git a/src/map.h b/src/map.h
index 77689803f..4bfdb56fb 100644
--- a/src/map.h
+++ b/src/map.h
@@ -350,7 +350,7 @@ class Map final : public Properties, public ConfigListener
                               const int x, const int y,
                               const bool addNew = true);
 
-        std::vector<MapItem*> &getPortals() A_WARN_UNUSED
+        const std::vector<MapItem*> &getPortals() const A_WARN_UNUSED
         { return mMapPortals; }
 
         /**