diff --git a/apps/files_sharing/openapi.json b/apps/files_sharing/openapi.json
index ba15f60870e..3ecfe58234a 100644
--- a/apps/files_sharing/openapi.json
+++ b/apps/files_sharing/openapi.json
@@ -721,7 +721,8 @@
                         "type": "string"
                     },
                     "url": {
-                        "type": "string"
+                        "type": "string",
+                        "nullable": true
                     }
                 }
             },
diff --git a/openapi.json b/openapi.json
index b1a8a93dd08..94522cde734 100644
--- a/openapi.json
+++ b/openapi.json
@@ -2852,7 +2852,8 @@
                         "type": "string"
                     },
                     "url": {
-                        "type": "string"
+                        "type": "string",
+                        "nullable": true
                     }
                 }
             },