diff --git a/terminatorlib/keybindings.py b/terminatorlib/keybindings.py
index ea7c0e6b..dfdeb36b 100644
--- a/terminatorlib/keybindings.py
+++ b/terminatorlib/keybindings.py
@@ -81,6 +81,8 @@ class TerminatorKeybindings:
       raise KeymapError("Unhandled modifier '<%s>'" % modifier)
 
   def lookup(self, event):
+    if not event:
+      raise KeymapError("lookup called with no event")
     keyval, egroup, level, consumed = self.keymap.translate_keyboard_state(event.hardware_keycode, event.state, event.group)
     mask = (event.state & ~consumed) & self._masks
     return self._lookup.get(mask, self.empty).get(event.keyval, None)
diff --git a/terminatorlib/terminatorterm.py b/terminatorlib/terminatorterm.py
index a568a34e..6b542a56 100755
--- a/terminatorlib/terminatorterm.py
+++ b/terminatorlib/terminatorterm.py
@@ -676,6 +676,9 @@ text/plain
   #the selected terminal)
   UnhandledKeybindings = ('close_window', 'full_screen')
   def on_vte_key_press (self, term, event):
+    if not event:
+      dbg ('on_vte_key_press: Called on %s with no event'%term)
+      return False
     mapping = self.terminator.keybindings.lookup(event)
 
     if mapping and mapping not in self.UnhandledKeybindings: