diff --git a/pkg/api/types.go b/pkg/api/types.go
index 5fa63618649..80e59d93c3e 100644
--- a/pkg/api/types.go
+++ b/pkg/api/types.go
@@ -189,7 +189,7 @@ type VolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk"`
-	// AWSElasticBlockStore represents a AWS EBS disk that is attached to a
+	// AWSElasticBlockStore represents an AWS EBS disk that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore"`
 	// GitRepo represents a git repository at a particular revision.
@@ -211,7 +211,7 @@ type PersistentVolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk"`
-	// AWSElasticBlockStore represents a AWS EBS disk that is attached to a
+	// AWSElasticBlockStore represents an AWS EBS disk that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore"`
 	// HostPath represents a directory on the host.
diff --git a/pkg/api/v1beta1/types.go b/pkg/api/v1beta1/types.go
index 79192cf21dc..f746213816c 100644
--- a/pkg/api/v1beta1/types.go
+++ b/pkg/api/v1beta1/types.go
@@ -105,7 +105,7 @@ type VolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk" description:"GCE disk resource attached to the host machine on demand"`
-	// AWSElasticBlockStore represents a AWS Disk resource that is attached to a
+	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore" description:"AWS disk resource attached to the host machine on demand"`
 	// GitRepo represents a git repository at a particular revision.
@@ -127,7 +127,7 @@ type PersistentVolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk" description:"GCE disk resource provisioned by an admin"`
-	// AWSElasticBlockStore represents a AWS EBS volume that is attached to a
+	// AWSElasticBlockStore represents an AWS EBS volume that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore" description:"AWS disk resource provisioned by an admin"`
 	// HostPath represents a directory on the host.
diff --git a/pkg/api/v1beta2/types.go b/pkg/api/v1beta2/types.go
index 1504a324ab0..06ac986ba66 100644
--- a/pkg/api/v1beta2/types.go
+++ b/pkg/api/v1beta2/types.go
@@ -96,7 +96,7 @@ type PersistentVolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"persistentDisk" description:"GCE disk resource provisioned by an admin"`
-	// AWSElasticBlockStore represents a AWS Disk resource that is attached to a
+	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore" description:"AWS disk resource provisioned by an admin"`
 	// HostPath represents a directory on the host.
diff --git a/pkg/api/v1beta3/types.go b/pkg/api/v1beta3/types.go
index 76d5070b313..2942b2ac736 100644
--- a/pkg/api/v1beta3/types.go
+++ b/pkg/api/v1beta3/types.go
@@ -206,7 +206,7 @@ type VolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk" description:"GCE disk resource attached to the host machine on demand"`
-	// AWSElasticBlockStore represents a AWS Disk resource that is attached to a
+	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore" description:"AWS disk resource attached to the host machine on demand"`
 	// GitRepo represents a git repository at a particular revision.
@@ -228,7 +228,7 @@ type PersistentVolumeSource struct {
 	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk" description:"GCE disk resource provisioned by an admin"`
-	// AWSElasticBlockStore represents a AWS Disk resource that is attached to a
+	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
 	// kubelet's host machine and then exposed to the pod.
 	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore" description:"AWS disk resource provisioned by an admin"`
 	// HostPath represents a directory on the host.