diff -r da9d27bc6ea6 -r b55f78fd2bf6 hedgewars/uLand.pas
--- a/hedgewars/uLand.pas	Sun Dec 19 19:24:15 2010 +0300
+++ b/hedgewars/uLand.pas	Sun Dec 19 20:01:24 2010 +0300
@@ -1045,6 +1045,8 @@
         0: GenBlank(EdgeTemplates[SelectTemplate]);
         1: GenMaze;
         2: GenDrawnMap;
+    else
+        OutError('Unknown mapgen', true);
     end;
     AddProgress();
 
@@ -1286,6 +1288,8 @@
         0: GenBlank(EdgeTemplates[SelectTemplate]);
         1: GenMaze;
         2: GenDrawnMap;
+    else
+        OutError('Unknown mapgen', true);
     end;
 
     lh:= LAND_HEIGHT div 128;