diff --git a/packaging/dev-shell.nix b/packaging/dev-shell.nix
index f10a9d56e..27d819ec4 100644
--- a/packaging/dev-shell.nix
+++ b/packaging/dev-shell.nix
@@ -119,6 +119,7 @@ pkgs.nixComponents2.nix-util.overrideAttrs (
         modular.pre-commit.settings.package
         (pkgs.writeScriptBin "pre-commit-hooks-install" modular.pre-commit.settings.installationScript)
         pkgs.buildPackages.nixfmt-rfc-style
+        pkgs.buildPackages.gdb
       ]
       ++ lib.optional (stdenv.cc.isClang && stdenv.hostPlatform == stdenv.buildPlatform) (
         lib.hiPrio pkgs.buildPackages.clang-tools