diff --git a/src/Dmf_BusFilter.c b/src/Dmf_BusFilter.c
index 3971900..daf1bb0 100644
--- a/src/Dmf_BusFilter.c
+++ b/src/Dmf_BusFilter.c
@@ -21,6 +21,8 @@ Environment:
 #include "Dmf_BusFilter.h"
 #include "DmfModules.Library.Trace.h"
 
+#include <initguid.h>
+
 #if defined(DMF_INCLUDE_TMH)
 #include "Dmf_BusFilter.tmh"
 #endif