diff --git a/src/session.cpp b/src/session.cpp
index 7d8b4d58f..76000de52 100644
--- a/src/session.cpp
+++ b/src/session.cpp
@@ -302,9 +302,7 @@ namespace {
 		// number of disk threads for low level file operations
 		set.set_int(settings_pack::aio_threads, 8);
 
-		// keep 5 MiB outstanding when checking hashes
-		// of a resumed file
-		set.set_int(settings_pack::checking_mem_usage, 320);
+		set.set_int(settings_pack::checking_mem_usage, 2048);
 
 		// the disk cache performs better with the pool allocator
 		set.set_bool(settings_pack::use_disk_cache_pool, true);