diff --git a/pkgs/applications/version-management/git-and-tools/thicket/default.nix b/pkgs/applications/version-management/git-and-tools/thicket/default.nix
index 0fd180c441a6..6aa639be86c9 100644
--- a/pkgs/applications/version-management/git-and-tools/thicket/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/thicket/default.nix
@@ -1,12 +1,9 @@
 { lib
 , fetchFromGitHub
-, crystal_1_0
+, crystal
 }:
 
-let
-  crystal = crystal_1_0;
-
-in crystal.buildCrystalPackage rec {
+crystal.buildCrystalPackage rec {
   pname = "thicket";
   version = "0.1.5";