diff --git a/src/cthulhu/plugins/DisplayVersion/DisplayVersion.py b/src/cthulhu/plugins/DisplayVersion/DisplayVersion.py
index 894bc25..e52fee9 100644
--- a/src/cthulhu/plugins/DisplayVersion/DisplayVersion.py
+++ b/src/cthulhu/plugins/DisplayVersion/DisplayVersion.py
@@ -35,14 +35,27 @@ class DisplayVersion(GObject.Object, Peas.Activatable, plugin.Plugin):
     __gtype_name__ = 'displayversion'
 
     object = GObject.Property(type=GObject.Object)
+    
     def __init__(self):
         plugin.Plugin.__init__(self)
+        self._api = None
+    
     def do_activate(self):
-        API = self.object
-        self.registerGestureByString(self.speakText, _(f'Cthulhu screen reader version {cthulhuVersion.version}-{cthulhuVersion.codeName}'), 'kb:cthulhu+shift+v')
+        self._api = self.object
+        self.registerGestureByString(
+            self.speakText, 
+            _(f'Cthulhu screen reader version {cthulhuVersion.version}-{cthulhuVersion.codeName}'), 
+            'kb:cthulhu+x'
+        )
+    
     def do_deactivate(self):
-        API = self.object
+        self._api = None
+    
     def speakText(self, script=None, inputEvent=None):
-        API = self.object
-        API.app.getDynamicApiManager().getAPI('CthulhuState').activeScript.presentMessage(f'Cthulhu screen reader version {cthulhuVersion.version}-{cthulhuVersion.codeName}', resetStyles=False)
+        if not self._api:
+            return False
+        self._api.app.getDynamicApiManager().getAPI('CthulhuState').activeScript.presentMessage(
+            f'Cthulhu screen reader version {cthulhuVersion.version}-{cthulhuVersion.codeName}',
+            resetStyles=False
+        )
         return True