diff --git a/lib/device/dev-cache.c b/lib/device/dev-cache.c
index c4fdbe1fc..a816eb19a 100644
--- a/lib/device/dev-cache.c
+++ b/lib/device/dev-cache.c
@@ -1311,7 +1311,7 @@ int dev_cache_init(struct cmd_context *cmd)
 	if (!(_cache.mem = dm_pool_create("dev_cache", 10 * 1024)))
 		return_0;
 
-	if (!(_cache.names = dm_hash_create(1020)) ||
+	if (!(_cache.names = dm_hash_create(8190)) ||
 	    !(_cache.vgid_index = dm_hash_create(30)) ||
 	    !(_cache.lvid_index = dm_hash_create(29))) {
 		dm_pool_destroy(_cache.mem);
diff --git a/lib/filters/filter-persistent.c b/lib/filters/filter-persistent.c
index 212a5c183..7b20ff1d1 100644
--- a/lib/filters/filter-persistent.c
+++ b/lib/filters/filter-persistent.c
@@ -58,7 +58,7 @@ static int _init_hash(struct pfilter *pf)
 	if (pf->devices)
 		dm_hash_destroy(pf->devices);
 
-	if (!(pf->devices = dm_hash_create(511)))
+	if (!(pf->devices = dm_hash_create(8191)))
 		return_0;
 
 	return 1;