diff --git a/src/basic/hashmap.c b/src/basic/hashmap.c
index f2e33d22656..80fec8fb535 100644
--- a/src/basic/hashmap.c
+++ b/src/basic/hashmap.c
@@ -888,7 +888,8 @@ void internal_hashmap_clear(HashmapBase *h, free_func_t default_free_key, free_f
                  * themselves from our hash table a second time, the entry is already gone. */
 
                 while (internal_hashmap_size(h) > 0) {
-                        void *v, *k;
+                        void *k = NULL;
+                        void *v;
 
                         v = internal_hashmap_first_key_and_value(h, true, &k);