diff --git a/lib/ResponseDefinitions.php b/lib/ResponseDefinitions.php
index b240498c..4ca14e58 100644
--- a/lib/ResponseDefinitions.php
+++ b/lib/ResponseDefinitions.php
@@ -17,6 +17,9 @@
  *     mimeType: string,
  *     hasPreview: bool,
  *     reason: string,
+ *     owner: ?string,
+ *     permissions: int,
+ *     size: int,
  * }
  *
  * @psalm-suppress UnusedClass
diff --git a/lib/Service/RecommendedFile.php b/lib/Service/RecommendedFile.php
index c8c3d30b..c6b0d785 100644
--- a/lib/Service/RecommendedFile.php
+++ b/lib/Service/RecommendedFile.php
@@ -75,6 +75,9 @@ public function jsonSerialize() {
 			'mimeType' => $this->node->getMimetype(),
 			'hasPreview' => $this->hasPreview(),
 			'reason' => $this->getReason(),
+			'owner' => $this->node->getOwner()?->getUID() ?: null,
+			'permissions' => $this->node->getPermissions(),
+			'size' => $this->node->getSize(),
 		];
 	}
 }
diff --git a/openapi.json b/openapi.json
index c72e5f6c..02e3caef 100644
--- a/openapi.json
+++ b/openapi.json
@@ -70,7 +70,10 @@
                     "extension",
                     "mimeType",
                     "hasPreview",
-                    "reason"
+                    "reason",
+                    "owner",
+                    "permissions",
+                    "size"
                 ],
                 "properties": {
                     "id": {
@@ -97,6 +100,18 @@
                     },
                     "reason": {
                         "type": "string"
+                    },
+                    "owner": {
+                        "type": "string",
+                        "nullable": true
+                    },
+                    "permissions": {
+                        "type": "integer",
+                        "format": "int64"
+                    },
+                    "size": {
+                        "type": "integer",
+                        "format": "int64"
                     }
                 }
             }