diff --git a/pkgs/tools/misc/piston-cli/default.nix b/pkgs/tools/misc/piston-cli/default.nix
index ec77007804b9..5e1ca0242bc6 100644
--- a/pkgs/tools/misc/piston-cli/default.nix
+++ b/pkgs/tools/misc/piston-cli/default.nix
@@ -9,7 +9,7 @@ python3Packages.buildPythonApplication rec {
     sha256 = "qvDGVJcaMXUajdUQWl4W1dost8k0PsS9XX/o8uQrtfY=";
   };
 
-  propagatedBuildInputs = with python3Packages; [ rich prompt_toolkit requests pygments pyyaml ];
+  propagatedBuildInputs = with python3Packages; [ rich prompt_toolkit requests pygments pyyaml more-itertools ];
 
   checkPhase = ''
     $out/bin/piston --help > /dev/null