diff --git a/site_ansto/orhvps.c b/site_ansto/orhvps.c
index 2cf3ddfd..5721faef 100644
--- a/site_ansto/orhvps.c
+++ b/site_ansto/orhvps.c
@@ -644,6 +644,10 @@ static int ORHVPSGetValue( pEVDriver self, float* fPos) {
  * Set the current value from SICS
  */
 static int ORHVPSSetValue( pEVDriver self, float fPos) {
+
+  char reply[CMDLEN];
+  int rep_len = CMDLEN;
+
   pORHVPSDriv priv = NULL;
   assert(self);
   assert(self->pPrivate);
@@ -656,6 +660,9 @@ static int ORHVPSSetValue( pEVDriver self, float fPos) {
     priv->iErrorCode = ORHVPS_ERR_RANGE;
     return 0;
   }
+
+  AsyncUnitTransact(priv->asyncUnit, "Jz", 2, reply, &rep_len);
+
   priv->fTarget = fPos;
   priv->bRunFlag = true;
   return 1;