diff --git a/site_ansto/counterdriv.c b/site_ansto/counterdriv.c
index d0ca7022..9327c455 100644
--- a/site_ansto/counterdriv.c
+++ b/site_ansto/counterdriv.c
@@ -422,6 +422,7 @@ static int MonGetError(CounterDriver *cntrData, int *iCode, char *error, int iEr
     case TIMEOUT:
     case BADSEND:
     case BADMEMORY:
+    case INCOMPLETE:
       getRS232Error(*iCode, error, iErrLen);
       break;
     default:
@@ -453,6 +454,7 @@ static int MonTryAndFixIt(CounterDriver *cntrData, int iCode) {
     case BADSEND:  
     case TIMEOUT:
     case BADMEMORY: /* Won't happen if MonConnect sets the send terminator */
+    case INCOMPLETE:
       return COREDO;
   }
   return COTERM;