Fix the select statement that calculates a new cache ID.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/generic/util/file_cache.cc b/src/generic/util/file_cache.cc
index 86da79af..72ce6048 100644
--- a/src/generic/util/file_cache.cc
+++ b/src/generic/util/file_cache.cc
@@ -539,7 +539,7 @@ insert into globals(TotalBlobSize) values(0);				\
 			// put calls), and trying to avoid it seems
 			// like it would cause a lot of trouble.
 			sqlite::db::statement_proxy update_last_use_statement =
-			  store->get_cached_statement("update cache set CacheId = max(select CacheId from cache) + 1 where CacheId = ?");
+			  store->get_cached_statement("update cache set CacheId = (select max(CacheId) from cache) + 1 where CacheId = ?");
 			update_last_use_statement->bind_int64(0, oldCacheId);
 			update_last_use_statement->exec();
 		      }