diff --git a/src/tool_operate.c b/src/tool_operate.c
index 6042ff7b3a..c1bce045cd 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -226,7 +226,7 @@ static struct curl_429_list *curl_429_delay_set(struct curl_429_list *list,
   new_item = curlx_malloc(sizeof(struct curl_429_list));
   if(!new_item)
     return NULL;
-  new_item->origin = origin;
+  new_item->origin = curlx_strdup(origin);
   if(!new_item->origin) {
     curlx_free(new_item);
     return NULL;
@@ -271,6 +271,7 @@ static void curl_429_delay_free_all(struct curl_429_list *list)
   item = list;
   do {
     next = item->next;
+    curlx_free(item->origin);
     curlx_free(item);
     item = next;
   } while(next);