diff --git a/sicspoll.c b/sicspoll.c
index 5c280413..dc0e3aed 100644
--- a/sicspoll.c
+++ b/sicspoll.c
@@ -50,6 +50,10 @@ void killSicsPoll(void *data){
         status = LLDnodePtr2Next(self->pollList);
     }    
     LLDdelete(self->pollList);
+    if (self->pDes) {
+      DeleteDescriptor(self->pDes);
+      self->pDes = NULL;
+    }
     free(self);
     if(defCon != NULL){
         SCDeleteConnection(defCon);