diff --git a/ktweak b/ktweak
index 31433df..1326e13 100644
--- a/ktweak
+++ b/ktweak
@@ -203,7 +203,7 @@ do
 	write "$queue/iostats" 0
 
 	# Reduce heuristic read-ahead in exchange for I/O latency
-	write "$queue/read_ahead_kb" 16
+	write "$queue/read_ahead_kb" 128
 
 	# Reduce the maximum number of I/O requests in exchange for latency
 	write "$queue/nr_requests" 64