diff --git a/pkgs/stdenv/generic/check-meta.nix b/pkgs/stdenv/generic/check-meta.nix
index 1350e7d3730..a5c8ca70523 100644
--- a/pkgs/stdenv/generic/check-meta.nix
+++ b/pkgs/stdenv/generic/check-meta.nix
@@ -170,6 +170,8 @@ let
     isIbusEngine = bool;
     isGutenprint = bool;
     badPlatforms = platforms;
+    # Hydra build timeout
+    timeout = int;
   };
 
   checkMetaAttr = k: v: