diff --git a/reactos/dll/win32/ole32/compobj_private.h b/reactos/dll/win32/ole32/compobj_private.h
index 1c49956b6f8..2a0b36cdb20 100644
--- a/reactos/dll/win32/ole32/compobj_private.h
+++ b/reactos/dll/win32/ole32/compobj_private.h
@@ -43,7 +43,6 @@ typedef struct apartment APARTMENT;
 
 DEFINE_OLEGUID( CLSID_DfMarshal, 0x0000030b, 0, 0 );
 DEFINE_OLEGUID( CLSID_PSFactoryBuffer, 0x00000320, 0, 0 );
-DEFINE_OLEGUID( CLSID_InProcFreeMarshaler, 0x0000033a, 0, 0 );
 
 /* signal to stub manager that this is a rem unknown object */
 #define MSHLFLAGSP_REMUNKNOWN   0x80000000