diff --git a/discovery/file/file_test.go b/discovery/file/file_test.go
index e3b59b474..76e1cebed 100644
--- a/discovery/file/file_test.go
+++ b/discovery/file/file_test.go
@@ -308,6 +308,7 @@ func TestInitialUpdate(t *testing.T) {
 		"fixtures/valid.yml",
 		"fixtures/valid.json",
 	} {
+		tc := tc
 		t.Run(tc, func(t *testing.T) {
 			t.Parallel()