diff --git a/services/preview/datafactory/mgmt/2017-09-01-preview/datafactory/models.go b/services/preview/datafactory/mgmt/2017-09-01-preview/datafactory/models.go
index d52d3a795d2c..8fe12a581ee6 100644
--- a/services/preview/datafactory/mgmt/2017-09-01-preview/datafactory/models.go
+++ b/services/preview/datafactory/mgmt/2017-09-01-preview/datafactory/models.go
@@ -38959,7 +38959,7 @@ func (fa *FilterActivity) UnmarshalJSON(body []byte) error {
 	return nil
 }
 
-// FilterActivityTypeProperties fitler activity properties.
+// FilterActivityTypeProperties filter activity properties.
 type FilterActivityTypeProperties struct {
 	// Items - Input array on which filter should be applied.
 	Items *Expression `json:"items,omitempty"`