diff --git a/python3/vimspector/debug_session.py b/python3/vimspector/debug_session.py
index ca4808b..3ad4a77 100644
--- a/python3/vimspector/debug_session.py
+++ b/python3/vimspector/debug_session.py
@@ -615,7 +615,7 @@ class DebugSession( object ):
       self._stackTraceView.LoadThreads( True )
 
 
-  def OnEvent_capabiilities( self, msg ):
+  def OnEvent_capabilities( self, msg ):
     self._server_capabilities.update(
       ( msg.get( 'body' ) or {} ).get( 'capabilities' ) or {} )