diff --git a/src/installer/scripts.py b/src/installer/scripts.py
index 56a49df9..5de5e7de 100644
--- a/src/installer/scripts.py
+++ b/src/installer/scripts.py
@@ -128,7 +128,7 @@ def _get_launcher_data(self, kind: "LauncherKind") -> Optional[bytes]:
             name = _ALLOWED_LAUNCHERS[key]
         except KeyError as exc:
             error = f"{key!r} not in {sorted(_ALLOWED_LAUNCHERS)!r}"
-            raise InvalidScript(error) from exc
+            raise InvalidScript(error) from None
         return read_binary(_scripts, name)
 
     def _get_alternate_executable(self, executable: str, kind: "LauncherKind") -> str: