--- a/QScintilla/Editor.py	Sun May 31 17:30:12 2015 +0200
+++ b/QScintilla/Editor.py	Sun May 31 17:58:29 2015 +0200
@@ -4810,8 +4810,8 @@
         @param key name of the provider
         @type str
         """
-        if key in self.__completionListHookFunctions:
-            del self.__completionListHookFunctions[key]
+        if key in self.__ctHookFunctions:
+            del self.__ctHookFunctions[key]
     
     def getCallTipHook(self, key):
         """