diff --git a/pikaur/pikspect.py b/pikaur/pikspect.py
index 6012f64fc..f2160c260 100644
--- a/pikaur/pikspect.py
+++ b/pikaur/pikspect.py
@@ -245,7 +245,7 @@ def __enter__(self) -> os.terminal_size:
         return real_term_geometry
 
     def __exit__(self, *exc_details: object) -> None:
-        if self._original_signal:
+        if self._original_signal is not None:
             signal.signal(signal.SIGWINCH, self._original_signal)
         self.tty_wrapper.__exit__(*exc_details)
         TTYRestore.restore()