diff --git a/shell.nix b/shell.nix
index ecb444e75ec0..d8235f187559 100644
--- a/shell.nix
+++ b/shell.nix
@@ -35,5 +35,8 @@ curPkgs
     # Helper to review Nixpkgs PRs
     # See CONTRIBUTING.md
     nixpkgs-review
+    # Command-line utility for working with GitHub
+    # Used by nixpkgs-review to fetch eval results
+    gh
   ];
 }