diff --git a/services/devtestlabs/mgmt/2016-05-15/dtl/models.go b/services/devtestlabs/mgmt/2016-05-15/dtl/models.go
index cb69c06ebccc..36884030fea8 100644
--- a/services/devtestlabs/mgmt/2016-05-15/dtl/models.go
+++ b/services/devtestlabs/mgmt/2016-05-15/dtl/models.go
@@ -1328,7 +1328,7 @@ type AttachDiskProperties struct {
 
 // AttachNewDataDiskOptions properties to attach new disk to the Virtual Machine.
 type AttachNewDataDiskOptions struct {
-	// DiskSizeGiB - Size of the disk to be attached in GibiBytes.
+	// DiskSizeGiB - Size of the disk to be attached in Gibibytes.
 	DiskSizeGiB *int32 `json:"diskSizeGiB,omitempty"`
 	// DiskName - The name of the disk to be attached.
 	DiskName *string `json:"diskName,omitempty"`
@@ -1800,7 +1800,7 @@ func (d *Disk) UnmarshalJSON(body []byte) error {
 type DiskProperties struct {
 	// DiskType - The storage type for the disk (i.e. Standard, Premium). Possible values include: 'Standard', 'Premium'
 	DiskType StorageType `json:"diskType,omitempty"`
-	// DiskSizeGiB - The size of the disk in GibiBytes.
+	// DiskSizeGiB - The size of the disk in Gibibytes.
 	DiskSizeGiB *int32 `json:"diskSizeGiB,omitempty"`
 	// LeasedByLabVMID - The resource ID of the VM to which this disk is leased.
 	LeasedByLabVMID *string `json:"leasedByLabVmId,omitempty"`
@@ -2496,7 +2496,7 @@ type GenerateUploadURIParameter struct {
 	BlobName *string `json:"blobName,omitempty"`
 }
 
-// GenerateUploadURIResponse reponse body for generating an upload URI.
+// GenerateUploadURIResponse response body for generating an upload URI.
 type GenerateUploadURIResponse struct {
 	autorest.Response `json:"-"`
 	// UploadURI - The upload URI for the VHD.
diff --git a/services/devtestlabs/mgmt/2016-05-15/dtl/notificationchannels.go b/services/devtestlabs/mgmt/2016-05-15/dtl/notificationchannels.go
index 9f847783b9ac..771b8421a920 100644
--- a/services/devtestlabs/mgmt/2016-05-15/dtl/notificationchannels.go
+++ b/services/devtestlabs/mgmt/2016-05-15/dtl/notificationchannels.go
@@ -129,7 +129,7 @@ func (client NotificationChannelsClient) CreateOrUpdateResponder(resp *http.Resp
 	return
 }
 
-// Delete delete notificationchannel.
+// Delete delete notification channel.
 // Parameters:
 // resourceGroupName - the name of the resource group.
 // labName - the name of the lab.
@@ -207,7 +207,7 @@ func (client NotificationChannelsClient) DeleteResponder(resp *http.Response) (r
 	return
 }
 
-// Get get notificationchannel.
+// Get get notification channels.
 // Parameters:
 // resourceGroupName - the name of the resource group.
 // labName - the name of the lab.
@@ -290,7 +290,7 @@ func (client NotificationChannelsClient) GetResponder(resp *http.Response) (resu
 	return
 }
 
-// List list notificationchannels in a given lab.
+// List list notification channels in a given lab.
 // Parameters:
 // resourceGroupName - the name of the resource group.
 // labName - the name of the lab.
@@ -502,7 +502,7 @@ func (client NotificationChannelsClient) NotifyResponder(resp *http.Response) (r
 	return
 }
 
-// Update modify properties of notificationchannels.
+// Update modify properties of notification channels.
 // Parameters:
 // resourceGroupName - the name of the resource group.
 // labName - the name of the lab.
diff --git a/services/preview/devtestlabs/mgmt/2015-05-21-preview/dtl/models.go b/services/preview/devtestlabs/mgmt/2015-05-21-preview/dtl/models.go
index f39adc544a03..5dfd10bfc5fc 100644
--- a/services/preview/devtestlabs/mgmt/2015-05-21-preview/dtl/models.go
+++ b/services/preview/devtestlabs/mgmt/2015-05-21-preview/dtl/models.go
@@ -1399,7 +1399,7 @@ type GenerateUploadURIParameter struct {
 	BlobName *string `json:"blobName,omitempty"`
 }
 
-// GenerateUploadURIResponse reponse body for generating an upload URI.
+// GenerateUploadURIResponse response body for generating an upload URI.
 type GenerateUploadURIResponse struct {
 	autorest.Response `json:"-"`
 	// UploadURI - The upload URI for the VHD.