diff --git a/src/simulation.c b/src/simulation.c
index 001afc9..5e00bb4 100644
--- a/src/simulation.c
+++ b/src/simulation.c
@@ -102,11 +102,11 @@ void simulation_draw(simulation_t *sim)
                      (Vector2){CELL_WIDTH, CELL_HEIGHT}, color);
     }
 
-    // DrawRectangleLinesEx((Rectangle){.x      = s_x * CELL_WIDTH,
-    //                                  .y      = s_y * CELL_HEIGHT,
-    //                                  .width  = CELL_WIDTH * SIMULATION_ROW,
-    //                                  .height = CELL_HEIGHT * SIMULATION_ROW},
-    //                      1, WHITE);
+    DrawRectangleLinesEx((Rectangle){.x      = s_x * CELL_WIDTH,
+                                     .y      = s_y * CELL_HEIGHT,
+                                     .width  = CELL_WIDTH * SIMULATION_ROW,
+                                     .height = CELL_HEIGHT * SIMULATION_ROW},
+                         1, DARKGRAY);
   }
 }