diff --git a/site_ansto/nhq200driv.c b/site_ansto/nhq200driv.c
index 3af9764e..cb65816c 100644
--- a/site_ansto/nhq200driv.c
+++ b/site_ansto/nhq200driv.c
@@ -254,12 +254,14 @@ static int NHQ200Fix(pEVDriver self, int iError)
 }
 
 /*--------------------------------------------------------------------------*/
+#if 0
 static int NHQ200Halt(pEVDriver *self)
 {
   assert(self);
 
   return 1;
 }
+#endif
 /*------------------------------------------------------------------------*/
 void KillNHQ200(void *pData)
 {