diff -r a3531b520efb -r a7810074c20d hedgewars/uLandGenTemplateBased.pas
--- a/hedgewars/uLandGenTemplateBased.pas	Fri Nov 23 16:20:55 2018 -0500
+++ b/hedgewars/uLandGenTemplateBased.pas	Fri Nov 23 16:38:47 2018 -0500
@@ -367,7 +367,7 @@
         hasBorder:= true;
         for y:= 0 to LAND_HEIGHT - 1 do
             for x:= 0 to LAND_WIDTH - 1 do
-                if (y < topY) or (x < leftX) or (x > rightX) then
+                if (y < LongWord(topY)) or (x < LongWord(leftX)) or (x > LongWord(rightX)) then
                     Land[y, x]:= 0
                 else
                     begin