diff --git a/src/MapWithSetWarshipsGeneric.java b/src/MapWithSetWarshipsGeneric.java
index 820b941..7c72ce6 100644
--- a/src/MapWithSetWarshipsGeneric.java
+++ b/src/MapWithSetWarshipsGeneric.java
@@ -97,6 +97,7 @@ public class MapWithSetWarshipsGeneric <T extends IDrawingObject,U extends Abstr
 
         Color brush=Color.BLACK;
         Stroke penWide = new BasicStroke(3);
+        Stroke penThin = new BasicStroke(1);
 
         for (int i = 0; i < _pictureWidth / _placeSizeWidth; i++)
         {
@@ -107,6 +108,7 @@ public class MapWithSetWarshipsGeneric <T extends IDrawingObject,U extends Abstr
                 g.drawLine(i * _placeSizeWidth + 20, j * _placeSizeHeight+2, i * _placeSizeWidth + (int)(_placeSizeWidth*0.8), j * _placeSizeHeight+2);
                 g.drawLine(i * _placeSizeWidth + (int)(_placeSizeWidth * 0.8), j * _placeSizeHeight + 2, i * _placeSizeWidth + _placeSizeWidth, j * _placeSizeHeight + _placeSizeHeight/2);
                 g.drawLine(i * _placeSizeWidth + _placeSizeWidth, j * _placeSizeHeight + _placeSizeHeight / 2, i * _placeSizeWidth+ (int)(_placeSizeWidth * 0.8), j * _placeSizeHeight + _placeSizeHeight);
+                g.setStroke(penThin);
             }
         }
     }