diff --git a/src/tower/cli.py b/src/tower/cli.py
index d846ac4a..30272891 100644
--- a/src/tower/cli.py
+++ b/src/tower/cli.py
@@ -1,7 +1,13 @@
+import signal
 import sys
 
 from ._native import _run_cli
 
 
 def main():
+    # When invoked via Python, SIGINT defaults to raising KeyboardInterrupt
+    # in the interpreter instead of terminating the process immediately.
+    # Restore default SIGINT behavior so Ctrl+C reliably cancels interactive
+    # CLI flows (matching behavior of the standalone Rust binary).
+    signal.signal(signal.SIGINT, signal.SIG_DFL)
     _run_cli(sys.argv)
diff --git a/tests/tower/test_cli.py b/tests/tower/test_cli.py
new file mode 100644
index 00000000..948d4d97
--- /dev/null
+++ b/tests/tower/test_cli.py
@@ -0,0 +1,24 @@
+import signal
+
+import tower.cli
+
+
+def test_main_restores_default_sigint_and_calls_native(monkeypatch):
+    captured = {}
+
+    def fake_signal(sig, handler):
+        captured["sig"] = sig
+        captured["handler"] = handler
+
+    def fake_run_cli(argv):
+        captured["argv"] = argv
+
+    monkeypatch.setattr(tower.cli.signal, "signal", fake_signal)
+    monkeypatch.setattr(tower.cli, "_run_cli", fake_run_cli)
+
+    tower.cli.main()
+
+    assert captured["sig"] == signal.SIGINT
+    assert captured["handler"] == signal.SIG_DFL
+    assert isinstance(captured["argv"], list)
+    assert len(captured["argv"]) > 0