Index: dll/win32/ole32/ole32.spec
===================================================================
--- dll/win32/ole32/ole32.spec	(revision 66509)
+++ dll/win32/ole32/ole32.spec	(working copy)
@@ -22,7 +22,7 @@
 @ stdcall CoCreateInstanceEx(ptr ptr long ptr long ptr)
 # CoCreateObjectInContext
 # CoDeactivateObject
-# CoDisableCallCancellation
+@ stdcall -stub CoDisableCallCancellation(ptr)
 @ stdcall CoDisconnectObject(ptr long)
 @ stdcall CoDosDateTimeToFileTime(long long ptr) kernel32.DosDateTimeToFileTime
 # CoEnableCallCancellation