diff --git a/pkg/kubelet/cri/remote/util/util_windows.go b/pkg/kubelet/cri/remote/util/util_windows.go
index bc62eaa3641..c770755002d 100644
--- a/pkg/kubelet/cri/remote/util/util_windows.go
+++ b/pkg/kubelet/cri/remote/util/util_windows.go
@@ -102,7 +102,7 @@ func parseEndpoint(endpoint string) (string, string, error) {
 		}
 		return "npipe", fmt.Sprintf("//%s%s", host, u.Path), nil
 	} else if u.Scheme == "" {
-		return "", "", fmt.Errorf("Using %q as endpoint is deprecated, please consider using full url format", endpoint)
+		return "", "", fmt.Errorf("using %q as endpoint is deprecated, please consider using full url format", endpoint)
 	} else {
 		return u.Scheme, "", fmt.Errorf("protocol %q not supported", u.Scheme)
 	}
diff --git a/pkg/kubelet/cri/remote/utils.go b/pkg/kubelet/cri/remote/utils.go
index ca2c165d8e8..02aefe585b4 100644
--- a/pkg/kubelet/cri/remote/utils.go
+++ b/pkg/kubelet/cri/remote/utils.go
@@ -41,20 +41,20 @@ func getContextWithCancel() (context.Context, context.CancelFunc) {
 // verifySandboxStatus verified whether all required fields are set in PodSandboxStatus.
 func verifySandboxStatus(status *runtimeapi.PodSandboxStatus) error {
 	if status.Id == "" {
-		return fmt.Errorf("Id is not set")
+		return fmt.Errorf("status.Id is not set")
 	}
 
 	if status.Metadata == nil {
-		return fmt.Errorf("Metadata is not set")
+		return fmt.Errorf("status.Metadata is not set")
 	}
 
 	metadata := status.Metadata
 	if metadata.Name == "" || metadata.Namespace == "" || metadata.Uid == "" {
-		return fmt.Errorf("Name, Namespace or Uid is not in metadata %q", metadata)
+		return fmt.Errorf("metadata.Name, metadata.Namespace or metadata.Uid is not in metadata %q", metadata)
 	}
 
 	if status.CreatedAt == 0 {
-		return fmt.Errorf("CreatedAt is not set")
+		return fmt.Errorf("status.CreatedAt is not set")
 	}
 
 	return nil
@@ -63,28 +63,28 @@ func verifySandboxStatus(status *runtimeapi.PodSandboxStatus) error {
 // verifyContainerStatus verified whether all required fields are set in ContainerStatus.
 func verifyContainerStatus(status *runtimeapi.ContainerStatus) error {
 	if status.Id == "" {
-		return fmt.Errorf("Id is not set")
+		return fmt.Errorf("status.Id is not set")
 	}
 
 	if status.Metadata == nil {
-		return fmt.Errorf("Metadata is not set")
+		return fmt.Errorf("status.Metadata is not set")
 	}
 
 	metadata := status.Metadata
 	if metadata.Name == "" {
-		return fmt.Errorf("Name is not in metadata %q", metadata)
+		return fmt.Errorf("metadata.Name is not in metadata %q", metadata)
 	}
 
 	if status.CreatedAt == 0 {
-		return fmt.Errorf("CreatedAt is not set")
+		return fmt.Errorf("status.CreatedAt is not set")
 	}
 
 	if status.Image == nil || status.Image.Image == "" {
-		return fmt.Errorf("Image is not set")
+		return fmt.Errorf("status.Image is not set")
 	}
 
 	if status.ImageRef == "" {
-		return fmt.Errorf("ImageRef is not set")
+		return fmt.Errorf("status.ImageRef is not set")
 	}
 
 	return nil
diff --git a/pkg/scheduler/framework/fake/listers.go b/pkg/scheduler/framework/fake/listers.go
index ed1f46c9d45..0352bf38217 100644
--- a/pkg/scheduler/framework/fake/listers.go
+++ b/pkg/scheduler/framework/fake/listers.go
@@ -291,7 +291,7 @@ func (pvs PersistentVolumeLister) Get(pvID string) (*v1.PersistentVolume, error)
 			return &pv, nil
 		}
 	}
-	return nil, fmt.Errorf("Unable to find persistent volume: %s", pvID)
+	return nil, fmt.Errorf("unable to find persistent volume: %s", pvID)
 }
 
 // List lists all PersistentVolumes in the indexer.
@@ -311,7 +311,7 @@ func (classes StorageClassLister) Get(name string) (*storagev1.StorageClass, err
 			return &sc, nil
 		}
 	}
-	return nil, fmt.Errorf("Unable to find storage class: %s", name)
+	return nil, fmt.Errorf("unable to find storage class: %s", name)
 }
 
 // List lists all StorageClass in the indexer.
diff --git a/staging/src/k8s.io/kubectl/pkg/util/util.go b/staging/src/k8s.io/kubectl/pkg/util/util.go
index 0c1973dfb8e..af704b09183 100644
--- a/staging/src/k8s.io/kubectl/pkg/util/util.go
+++ b/staging/src/k8s.io/kubectl/pkg/util/util.go
@@ -68,7 +68,7 @@ func ParseFileSource(source string) (keyName, filePath string, err error) {
 	case numSeparators == 1 && strings.HasSuffix(source, "="):
 		return "", "", fmt.Errorf("file path for key name %v missing", strings.TrimSuffix(source, "="))
 	case numSeparators > 1:
-		return "", "", errors.New("Key names or file paths cannot contain '='")
+		return "", "", errors.New("key names or file paths cannot contain '='")
 	default:
 		components := strings.Split(source, "=")
 		return components[0], components[1], nil