diff --git a/config/interpolate_funcs_test.go b/config/interpolate_funcs_test.go
index 9b008b8cb..f301283c8 100644
--- a/config/interpolate_funcs_test.go
+++ b/config/interpolate_funcs_test.go
@@ -53,6 +53,7 @@ func TestInterpolateFuncFile(t *testing.T) {
 		}
 	}
 }
+
 func TestInterpolateFuncLookup(t *testing.T) {
 	cases := []struct {
 		M      map[string]string