diff --git a/src/util/mesa_cache_db.c b/src/util/mesa_cache_db.c
index f7536ae4a86..4372051c839 100644
--- a/src/util/mesa_cache_db.c
+++ b/src/util/mesa_cache_db.c
@@ -614,6 +614,9 @@ mesa_db_compact(struct mesa_cache_db *db, int64_t blob_size,
       return false;
 
    num_entries = _mesa_hash_table_num_entries(db->index_db->table);
+   if (!num_entries)
+      return true;
+
    entries = calloc(num_entries, sizeof(*entries));
    if (!entries)
       return false;