diff --git a/src/cache.c b/src/cache.c
index 7f1de9f..1bf996b 100644
--- a/src/cache.c
+++ b/src/cache.c
@@ -40,8 +40,6 @@
 
 static const char *cache_store_flt_id = "cache store filter";
 
-static struct pool_head *pool_head_cache_st = NULL;
-
 struct applet http_cache_applet;
 
 struct flt_ops cache_ops;
@@ -79,6 +77,8 @@
 static struct list caches = LIST_HEAD_INIT(caches);
 static struct cache *tmp_cache_config = NULL;
 
+DECLARE_STATIC_POOL(pool_head_cache_st, "cache_st", sizeof(struct cache_st));
+
 struct cache_entry *entry_exist(struct cache *cache, char *hash)
 {
 	struct eb32_node *node;
@@ -1212,12 +1212,6 @@
 	.release = http_cache_applet_release,
 };
 
-__attribute__((constructor))
-static void __cache_init(void)
-{
-	pool_head_cache_st = create_pool("cache_st", sizeof(struct cache_st), MEM_F_SHARED);
-}
-
 /* config parsers for this section */
 REGISTER_CONFIG_SECTION("cache", cfg_parse_cache, cfg_post_parse_section_cache);
 REGISTER_CONFIG_POSTPARSER("cache", cfg_cache_postparser);