diff --git a/site_ansto/motor_dmc2280.c b/site_ansto/motor_dmc2280.c
index 6328ba9c..a3c183df 100644
--- a/site_ansto/motor_dmc2280.c
+++ b/site_ansto/motor_dmc2280.c
@@ -4374,11 +4374,14 @@ int DMC2280Action(SConnection *pCon, SicsInterp *pSics, void *pData,
     }
     else if(strcasecmp("trace", argv[1]) == 0) {
       if (argc > 2 && strcasecmp("on", argv[2]) == 0) {
-        self->trace = pCon;
+        self->trace = SCCopyConnection(pCon);
         SCWrite(pCon, "TRACE ON", eValue);
       }
       else {
-        self->trace = 0;
+        if (self->trace) {
+          SCDeleteConnection(self->trace);
+          self->trace = 0;
+        }
         SCWrite(pCon, "TRACE OFF", eValue);
       }
       return 1;