diff --git a/main.go b/main.go
index 29d47e4..40a089b 100644
--- a/main.go
+++ b/main.go
@@ -145,7 +145,7 @@ func (g *GOL) grid() (gr *Grid) {
 	for i := 0; i < size; i++ {
 		gr.G[i] = g.grid1.G[i]
 	}
-	g.grid1, g.grid2 = g.grid2, new(Grid)
+	g.grid1, g.grid2 = g.grid2, g.grid1
 	return
 }