diff --git a/include/textserv.h b/include/textserv.h
index 977b742..ba896dc 100644
--- a/include/textserv.h
+++ b/include/textserv.h
@@ -25,7 +25,7 @@ extern "C" {
 
 DEFINE_GUID(IID_ITextServices,0x8d33f740,0xcf58,0x11ce,0xa8,0x9d,0x00,0xaa,0x00,0x6c,0xad,0xc5);
 DEFINE_GUID(IID_ITextHost,    0xc5bdd8d0,0xd26e,0x11ce,0xa8,0x9e,0x00,0xaa,0x00,0x6c,0xad,0xc5);
-DEFINE_GUID(IID_ITextHost2,   0xc5bdd8d0,0xd26e,0x11ce,0xa8,0x9e,0x00,0xaa,0x00,0x6c,0xad,0xc5);
+DEFINE_GUID(IID_ITextHost2,   0x13e670f5,0x1a5a,0x11cf,0xab,0xeb,0x00,0xaa,0x00,0xb6,0x5e,0xa1);
 
 /*****************************************************************************
  * ITextServices interface