diff --git a/src/installer/__main__.py b/src/installer/__main__.py
index 51014b9..45682d0 100644
--- a/src/installer/__main__.py
+++ b/src/installer/__main__.py
@@ -30,6 +30,13 @@ def _get_main_parser() -> argparse.ArgumentParser:
         type=str,
         help="override prefix to install packages to",
     )
+    parser.add_argument(
+        "--executable",
+        metavar="path",
+        default=sys.executable,
+        type=str,
+        help="#! executable to install scripts with (default=sys.executable)",
+    )
     parser.add_argument(
         "--compile-bytecode",
         action="append",
@@ -86,7 +93,7 @@ def _main(cli_args: Sequence[str], program: Optional[str] = None) -> None:
     with WheelFile.open(args.wheel) as source:
         destination = SchemeDictionaryDestination(
             scheme_dict=_get_scheme_dict(source.distribution, prefix=args.prefix),
-            interpreter=sys.executable,
+            interpreter=args.executable,
             script_kind=get_launcher_kind(),
             bytecode_optimization_levels=bytecode_levels,
             destdir=args.destdir,
@@ -94,5 +101,6 @@ def _main(cli_args: Sequence[str], program: Optional[str] = None) -> None:
         installer.install(source, destination, {})
 
 
+
 if __name__ == "__main__":  # pragma: no cover
     _main(sys.argv[1:], "python -m installer")
diff --git a/tests/test_main.py b/tests/test_main.py
index 391a13d..d7b4192 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -53,6 +53,28 @@ def test_main_prefix(fancy_wheel, tmp_path):
     }
 
 
+def test_main_executable(fancy_wheel, tmp_path):
+    destdir = tmp_path / "dest"
+
+    main(
+        [
+            str(fancy_wheel),
+            "-d",
+            str(destdir),
+            "--executable",
+            "/monty/python3.x",
+        ],
+        "python -m installer",
+    )
+
+    installed_scripts = destdir.rglob("bin/*")
+
+    for f in installed_scripts:
+        with f.open("rb") as fp:
+            shebang = fp.readline()
+            assert shebang == b"#!/monty/python3.x\n"
+
+
 def test_main_no_pyc(fancy_wheel, tmp_path):
     destdir = tmp_path / "dest"