diff --git a/pkgs/stdenv/generic/check-meta.nix b/pkgs/stdenv/generic/check-meta.nix
index 7b06692ac8ce..9cf75ecb8c6b 100644
--- a/pkgs/stdenv/generic/check-meta.nix
+++ b/pkgs/stdenv/generic/check-meta.nix
@@ -298,7 +298,7 @@ let
     executables = listOf str;
     outputsToInstall = listOf str;
     position = str;
-    available = bool;
+    available = unspecified;
     isBuildPythonPackage = platforms;
     schedulingPriority = int;
     isFcitxEngine = bool;