diff --git a/api/test/window_post.go b/api/test/window_post.go
index 8f5c4db75..a9a465b74 100644
--- a/api/test/window_post.go
+++ b/api/test/window_post.go
@@ -121,6 +121,7 @@ func TestWindowPost(t *testing.T, b APIBuilder, blocktime time.Duration, nSector
 		162,  // while sealing
 		5000, // while proving
 	} {
+		height := height // copy to satisfy lints
 		t.Run(fmt.Sprintf("upgrade-%d", height), func(t *testing.T) {
 			testWindowPostUpgrade(t, b, blocktime, nSectors, height)
 		})