diff --git a/cmd/kubemark/hollow-node.go b/cmd/kubemark/hollow-node.go
index 5bf7fb95faa..69eb42fe93a 100644
--- a/cmd/kubemark/hollow-node.go
+++ b/cmd/kubemark/hollow-node.go
@@ -84,7 +84,7 @@ func main() {
 	util.InitFlags()
 
 	if !knownMorphs.Has(config.Morph) {
-		glog.Fatal("Unknown morph: %v. Allowed values: %v", config.Morph, knownMorphs.List())
+		glog.Fatalf("Unknown morph: %v. Allowed values: %v", config.Morph, knownMorphs.List())
 	}
 
 	// create a client to communicate with API server.
diff --git a/cmd/libs/go2idl/client-gen/main.go b/cmd/libs/go2idl/client-gen/main.go
index 0f08d04ace4..a3779c90f90 100644
--- a/cmd/libs/go2idl/client-gen/main.go
+++ b/cmd/libs/go2idl/client-gen/main.go
@@ -98,7 +98,7 @@ func main() {
 		if err != nil {
 			glog.Fatalf("Error: %v", err)
 		}
-		glog.Info("going to generate clientset from these input paths: %v", inputPath)
+		glog.Infof("going to generate clientset from these input paths: %v", inputPath)
 		arguments.InputDirs = append(inputPath, dependencies...)
 		// TODO: we need to make OutPackagePath a map[string]string. For example,
 		// we need clientset and the individual typed clients be output to different
diff --git a/pkg/cloudprovider/providers/aws/aws.go b/pkg/cloudprovider/providers/aws/aws.go
index 628aa62fd09..0de86d17929 100644
--- a/pkg/cloudprovider/providers/aws/aws.go
+++ b/pkg/cloudprovider/providers/aws/aws.go
@@ -1234,7 +1234,7 @@ func (c *AWSCloud) AttachDisk(diskName string, instanceName string, readOnly boo
 			return "", fmt.Errorf("Error attaching EBS volume: %v", err)
 		}
 
-		glog.V(2).Info("AttachVolume request returned %v", attachResponse)
+		glog.V(2).Infof("AttachVolume request returned %v", attachResponse)
 	}
 
 	err = disk.waitForAttachmentStatus("attached")
@@ -1890,7 +1890,7 @@ func (s *AWSCloud) EnsureLoadBalancer(name, region string, publicIP net.IP, port
 
 	err = s.ensureLoadBalancerInstances(orEmpty(loadBalancer.LoadBalancerName), loadBalancer.Instances, instances)
 	if err != nil {
-		glog.Warning("Error registering instances with the load balancer: %v", err)
+		glog.Warningf("Error registering instances with the load balancer: %v", err)
 		return nil, err
 	}
 
diff --git a/pkg/cloudprovider/providers/openstack/openstack.go b/pkg/cloudprovider/providers/openstack/openstack.go
index 320bc308566..7237615283f 100644
--- a/pkg/cloudprovider/providers/openstack/openstack.go
+++ b/pkg/cloudprovider/providers/openstack/openstack.go
@@ -679,7 +679,7 @@ func (lb *LoadBalancer) EnsureLoadBalancer(name, region string, loadBalancerIP n
 		return nil, fmt.Errorf("unsupported load balancer affinity: %v", affinity)
 	}
 
-	glog.V(2).Info("Checking if openstack load balancer already exists: %s", name)
+	glog.V(2).Infof("Checking if openstack load balancer already exists: %s", name)
 	_, exists, err := lb.GetLoadBalancer(name, region)
 	if err != nil {
 		return nil, fmt.Errorf("error checking if openstack load balancer already exists: %v", err)
diff --git a/pkg/controller/persistentvolume/persistentvolume_provisioner_controller.go b/pkg/controller/persistentvolume/persistentvolume_provisioner_controller.go
index 951a8442a22..5603b1bcb47 100644
--- a/pkg/controller/persistentvolume/persistentvolume_provisioner_controller.go
+++ b/pkg/controller/persistentvolume/persistentvolume_provisioner_controller.go
@@ -202,7 +202,7 @@ func (controller *PersistentVolumeProvisionerController) reconcileClaim(claim *a
 	claim.Annotations[pvProvisioningRequiredAnnotationKey] = pvProvisioningCompletedAnnotationValue
 	_, err = controller.client.UpdatePersistentVolumeClaim(claim)
 	if err != nil {
-		glog.Error("error updating persistent volume claim: %v", err)
+		glog.Errorf("error updating persistent volume claim: %v", err)
 	}
 
 	return nil
diff --git a/pkg/kubelet/rkt/rkt.go b/pkg/kubelet/rkt/rkt.go
index cc0c5dcde0b..9e26e7b9190 100644
--- a/pkg/kubelet/rkt/rkt.go
+++ b/pkg/kubelet/rkt/rkt.go
@@ -1449,7 +1449,7 @@ func (r *Runtime) GetPodStatus(uid types.UID, name, namespace string) (*kubecont
 	for _, pod := range listResp.Pods {
 		manifest, creationTime, restartCount, err := getPodInfo(pod)
 		if err != nil {
-			glog.Warning("rkt: Couldn't get necessary info from the rkt pod, (uuid %q): %v", pod.Id, err)
+			glog.Warningf("rkt: Couldn't get necessary info from the rkt pod, (uuid %q): %v", pod.Id, err)
 			continue
 		}
 
diff --git a/pkg/metrics/generic_metrics.go b/pkg/metrics/generic_metrics.go
index 57dd016d86c..eecae0e7091 100644
--- a/pkg/metrics/generic_metrics.go
+++ b/pkg/metrics/generic_metrics.go
@@ -134,7 +134,7 @@ func parseMetrics(data string, knownMetrics map[string][]string, output *Metrics
 			if isKnownMetric || isCommonMetric {
 				(*output)[name] = append((*output)[name], metric)
 			} else {
-				glog.Warning("Unknown metric %v", metric)
+				glog.Warningf("Unknown metric %v", metric)
 				if unknownMetrics != nil {
 					unknownMetrics.Insert(name)
 				}
diff --git a/pkg/volume/empty_dir/empty_dir_linux.go b/pkg/volume/empty_dir/empty_dir_linux.go
index 3c1f2ccd514..d1ecf2b9344 100644
--- a/pkg/volume/empty_dir/empty_dir_linux.go
+++ b/pkg/volume/empty_dir/empty_dir_linux.go
@@ -46,7 +46,7 @@ func (m *realMountDetector) GetMountMedium(path string) (storageMedium, bool, er
 		return 0, false, fmt.Errorf("statfs(%q): %v", path, err)
 	}
 
-	glog.V(5).Info("Statfs_t of %v: %+v", path, buf)
+	glog.V(5).Infof("Statfs_t of %v: %+v", path, buf)
 	if buf.Type == linuxTmpfsMagic {
 		return mediumMemory, !notMnt, nil
 	}