diff --git a/apps/files_sharing/openapi.json b/apps/files_sharing/openapi.json
index 257250434f1..9eac4686897 100644
--- a/apps/files_sharing/openapi.json
+++ b/apps/files_sharing/openapi.json
@@ -702,7 +702,8 @@
                         "type": "string"
                     },
                     "url": {
-                        "type": "string"
+                        "type": "string",
+                        "nullable": true
                     }
                 }
             },
diff --git a/openapi.json b/openapi.json
index 745786c91bc..010c6d73526 100644
--- a/openapi.json
+++ b/openapi.json
@@ -2833,7 +2833,8 @@
                         "type": "string"
                     },
                     "url": {
-                        "type": "string"
+                        "type": "string",
+                        "nullable": true
                     }
                 }
             },