diff --git a/.pick_status.json b/.pick_status.json
index 17df44d79ec..7047276876a 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -517,7 +517,7 @@
         "description": "util/tests: initialise key in cache_test",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "e8495646afb06a9dd7786e9d11f4cdd7ac49279a"
     },
diff --git a/src/util/tests/cache/cache_test.c b/src/util/tests/cache/cache_test.c
index 144fd72173c..ec1587daaee 100644
--- a/src/util/tests/cache/cache_test.c
+++ b/src/util/tests/cache/cache_test.c
@@ -174,15 +174,16 @@ does_cache_contain(struct disk_cache *cache, const cache_key key)
 static bool
 cache_exists(struct disk_cache *cache)
 {
-   uint8_t dummy_key[20];
+   uint8_t key[20];
    char data[] = "some test data";
 
    if (!cache)
       return NULL;
 
-   disk_cache_put(cache, dummy_key, data, sizeof(data), NULL);
+   disk_cache_compute_key(cache, data, sizeof(data), key);
+   disk_cache_put(cache, key, data, sizeof(data), NULL);
    disk_cache_wait_for_idle(cache);
-   void *result = disk_cache_get(cache, dummy_key, NULL);
+   void *result = disk_cache_get(cache, key, NULL);
 
    free(result);
    return result != NULL;