diff --git a/src/bin/dualmaze/main.rs b/src/bin/dualmaze/main.rs
index 48033f4..772fd94 100644
--- a/src/bin/dualmaze/main.rs
+++ b/src/bin/dualmaze/main.rs
@@ -154,10 +154,10 @@ impl Board {
             self.draw_horizontal_segment(pos + v2d(1, 2 * delta), hsize);
         }
         if (segments & (1 << 4)) != 0 {
-            self.draw_vertical_segment(pos + v2d(0, 1), vsize);
+            self.draw_vertical_segment(pos + v2d(0, delta + 1), vsize);
         }
         if (segments & (1 << 5)) != 0 {
-            self.draw_vertical_segment(pos + v2d(0, delta + 1), vsize);
+            self.draw_vertical_segment(pos + v2d(0, 1), vsize);
         }
         if (segments & (1 << 6)) != 0 {
             self.draw_horizontal_segment(pos + v2d(1, delta), hsize);
diff --git a/src/bin/maze/main.rs b/src/bin/maze/main.rs
index 53738f5..fc9bcef 100644
--- a/src/bin/maze/main.rs
+++ b/src/bin/maze/main.rs
@@ -156,10 +156,10 @@ impl Board {
             self.draw_horizontal_segment(pos + v2d(1, 2 * delta), hsize);
         }
         if (segments & (1 << 4)) != 0 {
-            self.draw_vertical_segment(pos + v2d(0, 1), vsize);
+            self.draw_vertical_segment(pos + v2d(0, delta + 1), vsize);
         }
         if (segments & (1 << 5)) != 0 {
-            self.draw_vertical_segment(pos + v2d(0, delta + 1), vsize);
+            self.draw_vertical_segment(pos + v2d(0, 1), vsize);
         }
         if (segments & (1 << 6)) != 0 {
             self.draw_horizontal_segment(pos + v2d(1, delta), hsize);