diff --git a/pkg/instancegroups/rollingupdate_test.go b/pkg/instancegroups/rollingupdate_test.go
index b89ff352a9..8ccd299215 100644
--- a/pkg/instancegroups/rollingupdate_test.go
+++ b/pkg/instancegroups/rollingupdate_test.go
@@ -540,7 +540,7 @@ func TestRollingUpdateFlappingValidation(t *testing.T) {
 
 	// This should only take a few milliseconds,
 	// but we have to pad to allow for random delays (e.g. GC)
-	// TODO: Replace with a virtual clock?	
+	// TODO: Replace with a virtual clock?
 	c.ValidationTimeout = 200 * time.Second
 	
 	c.ClusterValidator = &flappingClusterValidator{