diff --git a/Lib/getpass.py b/Lib/getpass.py
index 4745ea9..2ac6fd7 100644
--- a/Lib/getpass.py
+++ b/Lib/getpass.py
@@ -62,7 +62,7 @@
         try:
             old = termios.tcgetattr(fd)     # a copy to save
             new = old[:]
-            new[3] &= ~(termios.ECHO|termios.ISIG)  # 3 == 'lflags'
+            new[3] &= ~termios.ECHO  # 3 == 'lflags'
             tcsetattr_flags = termios.TCSAFLUSH
             if hasattr(termios, 'TCSASOFT'):
                 tcsetattr_flags |= termios.TCSASOFT