1 files changed, 5 insertions, 0 deletions
diff --git a/src/map.cpp b/src/map.cpp
index 2c8dc90e2..773e6ecdc 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -1296,6 +1296,11 @@ void Map::addExtraLayer()
     {
         std::ifstream mapFile;
         mapFile.open(mapFileName.c_str(), std::ios::in);
+        if (!mapFile.is_open())
+        {
+            mapFile.close();
+            return;
+        }
         char line[201];
         std::string buf;
         while (mapFile.getline(line, 200))