diff --git a/year25/day7.go b/year25/day7.go
index 4cd6dc6..115c8bc 100644
--- a/year25/day7.go
+++ b/year25/day7.go
@@ -54,8 +54,6 @@ func Day7Part2(c aoc.Context) (int, error) {
 		return 0, fmt.Errorf("day7: failed to parse input %w", err)
 	}
 
-	h := geometry.NewGrid[int](g.Rows(), g.Cols())
-
 	var fill func(g geometry.Grid[byte], h geometry.Grid[int], start geometry.Point) int
 	fill = func(g geometry.Grid[byte], cache geometry.Grid[int], start geometry.Point) int {
 		if g.ContainsPoint(start) {
@@ -75,5 +73,5 @@ func Day7Part2(c aoc.Context) (int, error) {
 		}
 		return 0
 	}
-	return fill(g, h, start), nil
+	return fill(g, geometry.NewGrid[int](g.Rows(), g.Cols()), start), nil
 }