diff --git a/src/Xhgui/Controller/ImportController.php b/src/Xhgui/Controller/ImportController.php
index e28c6e8bd..c6a5fccc0 100644
--- a/src/Xhgui/Controller/ImportController.php
+++ b/src/Xhgui/Controller/ImportController.php
@@ -53,6 +53,9 @@ private function runImport(Request $request): string
         }
 
         $data = json_decode($request->getBody(), true);
+        if (!is_array($data)) {
+            throw new InvalidArgumentException('Failed do decode payload');
+        }
 
         return $this->saver->save($data);
     }