diff --git a/services/StockService.php b/services/StockService.php
index f73ac5bd..ffbbf7e9 100644
--- a/services/StockService.php
+++ b/services/StockService.php
@@ -697,6 +697,10 @@ class StockService extends BaseService
 		if (Grocycode::Validate($barcode))
 		{
 			$gc = new Grocycode($barcode);
+            if ($gc->GetType() != Grocycode::PRODUCT)
+            {
+                throw new \Exception("Grocycode $barcode is not a product code");
+            }
 			return intval($gc->GetId());
 		}