diff --git a/routers/api/v1/admin/user.go b/routers/api/v1/admin/user.go
index 1fbdab3e5598a..4192d8654d7c4 100644
--- a/routers/api/v1/admin/user.go
+++ b/routers/api/v1/admin/user.go
@@ -305,6 +305,10 @@ func DeleteUser(ctx *context.APIContext) {
 	//   description: username of user to delete
 	//   type: string
 	//   required: true
+	// - name: purge
+	//   in: query
+	//   description: purge the user from the system completely
+	//   type: boolean
 	// responses:
 	//   "204":
 	//     "$ref": "#/responses/empty"
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index cb88e175ea5f8..b64f6dcd87dcf 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -493,6 +493,12 @@
             "name": "username",
             "in": "path",
             "required": true
+          },
+          {
+            "type": "boolean",
+            "description": "purge the user from the system completely",
+            "name": "purge",
+            "in": "query"
           }
         ],
         "responses": {