diff --git a/Telegram/SourceFiles/storage/cache/storage_cache_types.h b/Telegram/SourceFiles/storage/cache/storage_cache_types.h
index a86374f3d..d9e1739fc 100644
--- a/Telegram/SourceFiles/storage/cache/storage_cache_types.h
+++ b/Telegram/SourceFiles/storage/cache/storage_cache_types.h
@@ -99,7 +99,7 @@ struct TaggedValue {
 
 struct TaggedSummary {
 	size_type count = 0;
-	size_type totalSize = 0;
+	int64 totalSize = 0;
 };
 struct Stats {
 	TaggedSummary full;