diff --git a/CHANGELOG.md b/CHANGELOG.md
index fa87b4d..f357682 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Naming checks for the default ruff configuration.
 
+### Fixed
+- Missing shebang in python check tools. This caused errors depending
+  on which exec function you used.
+
 ## [4.0.0] - 2024-02-14
 
 ### Added
diff --git a/python/hooks/default.nix b/python/hooks/default.nix
index 86e4580..909ab32 100644
--- a/python/hooks/default.nix
+++ b/python/hooks/default.nix
@@ -4,6 +4,7 @@
 , bat
 , findutils
 , lib
+, runtimeShell
 , defaultCheckPhase
 , configs
 , ruff
@@ -38,6 +39,7 @@ let
       name = "${toolName}-with-nedryglot-cfg";
       executable = true;
       text = ''
+        #!${runtimeShell}
         config_file=$TMP/lint-configs/${config}
         mkdir -p "$(dirname "$config_file")"
         export PYTHONPATH=''${PYTHONPATH:-}:${py.pkgs.toml}/${py.sitePackages}