diff --git a/staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/validation/validation_test.go b/staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/validation/validation_test.go
index d8b859993c6..f1733c176a7 100644
--- a/staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/validation/validation_test.go
+++ b/staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/validation/validation_test.go
@@ -342,7 +342,7 @@ func TestValidateCustomResource(t *testing.T) {
 				},
 			},
 			failingObjects: []failingObject{
-				{object: map[string]interface{}{"field": "foo"}, expectErrs: []string{"field: Invalid value: \"\": field in body should match '+, but pattern is invalid: error parsing regexp: missing argument to repetition operator: `+`'"}},
+				{object: map[string]interface{}{"field": "foo"}, expectErrs: []string{"field: Invalid value: \"foo\": field in body should match '+, but pattern is invalid: error parsing regexp: missing argument to repetition operator: `+`'"}},
 			},
 		},
 		{name: "required field",