diff --git a/shell.nix b/shell.nix
index 40023c3..396101d 100644
--- a/shell.nix
+++ b/shell.nix
@@ -5,6 +5,7 @@ with pkgs;
 mkShell {
   name = "fcos.integration";
   buildInputs = with pkgs; [
+    cmctl
     conftest
     editorconfig-checker
     git