diff --git a/include/psdk/ksproxy.h b/include/psdk/ksproxy.h
index db2f3122fec..849c15d9e92 100644
--- a/include/psdk/ksproxy.h
+++ b/include/psdk/ksproxy.h
@@ -772,7 +772,7 @@ DECLARE_INTERFACE_(IKsAggregateControl, IUnknown)
 #ifndef _IKsTopology_
 #define _IKsTopology_
 
-DEFINE_GUID(IID_IKsAggregateControl, 0x28F54683, 0x06FD, 0x11D2, 0xB2, 0x7A, 0x00, 0A0, 0xC9, 0x22, 0x31, 0x96);
+DEFINE_GUID(IID_IKsTopology, 0x28F54683, 0x06FD, 0x11D2, 0xB2, 0x7A, 0x00, 0A0, 0xC9, 0x22, 0x31, 0x96);
 
 #undef INTERFACE
 #define INTERFACE IKsTopology