diff --git a/src/cthulhu/cthulhu.py b/src/cthulhu/cthulhu.py
index ff3844e..a3a97be 100644
--- a/src/cthulhu/cthulhu.py
+++ b/src/cthulhu/cthulhu.py
@@ -121,7 +121,7 @@ class APIHelper:
                 self._gestureBindings[contextName].append(binding)
             
                 # Register key grab at the system level
-                grab_ids = self.app.addKeyGrab(binding)
+                grab_ids = cthulhu.addKeyGrab(binding)
             
                 # For later removal
                 if grab_ids: