diff --git a/confvirtualmot.c b/confvirtualmot.c
index 4a7f5e44..610a8481 100644
--- a/confvirtualmot.c
+++ b/confvirtualmot.c
@@ -421,6 +421,14 @@ static void KillConfigurableVirtualMotor(void *data){
       free(self->readScript);
       self->readScript = NULL;
     }
+    if (self->pCall != NULL) {
+      DeleteCallBackInterface(self->pCall);
+      self->pCall = NULL;
+    }
+    if (self->pDriv != NULL) {
+      free(self->pDriv);
+      self->pDriv = NULL;
+    }
     free(self);
     self = NULL;
   }