diff --git a/services/compute/mgmt/2019-03-01/compute/models.go b/services/compute/mgmt/2019-03-01/compute/models.go
index 51ebf57afa3a..e5166f2e83e8 100644
--- a/services/compute/mgmt/2019-03-01/compute/models.go
+++ b/services/compute/mgmt/2019-03-01/compute/models.go
@@ -2181,7 +2181,7 @@ type CreationData struct {
 	SourceResourceID *string `json:"sourceResourceId,omitempty"`
 	// SourceUniqueID - READ-ONLY; If this field is set, this is the unique id identifying the source of this resource.
 	SourceUniqueID *string `json:"sourceUniqueId,omitempty"`
-	// UploadSizeBytes - If createOption is Upload, this is the size of the contents of the upload including the VHD footer. This value should be between 1073741824 (1 GiB + 512 bytes for the VHD footer) and 35183298347520 bytes (32 TiB + 512 bytes for the VHD footer).
+	// UploadSizeBytes - If createOption is Upload, this is the size of the contents of the upload including the VHD footer. This value should be between 20972032 (20 MiB + 512 bytes for the VHD footer) and 35183298347520 bytes (32 TiB + 512 bytes for the VHD footer).
 	UploadSizeBytes *int64 `json:"uploadSizeBytes,omitempty"`
 }
 
diff --git a/services/compute/mgmt/2019-07-01/compute/models.go b/services/compute/mgmt/2019-07-01/compute/models.go
index 000532ffd69c..4ec2778a534e 100644
--- a/services/compute/mgmt/2019-07-01/compute/models.go
+++ b/services/compute/mgmt/2019-07-01/compute/models.go
@@ -2181,7 +2181,7 @@ type CreationData struct {
 	SourceResourceID *string `json:"sourceResourceId,omitempty"`
 	// SourceUniqueID - READ-ONLY; If this field is set, this is the unique id identifying the source of this resource.
 	SourceUniqueID *string `json:"sourceUniqueId,omitempty"`
-	// UploadSizeBytes - If createOption is Upload, this is the size of the contents of the upload including the VHD footer. This value should be between 1073741824 (1 GiB + 512 bytes for the VHD footer) and 35183298347520 bytes (32 TiB + 512 bytes for the VHD footer).
+	// UploadSizeBytes - If createOption is Upload, this is the size of the contents of the upload including the VHD footer. This value should be between 20972032 (20 MiB + 512 bytes for the VHD footer) and 35183298347520 bytes (32 TiB + 512 bytes for the VHD footer).
 	UploadSizeBytes *int64 `json:"uploadSizeBytes,omitempty"`
 }