diff --git a/src/sort.c b/src/sort.c
index d4d24c7..e7a0dcf 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -59,7 +59,7 @@ enum operation_mode { SORT,
 
 static char *tracedir = NULL;
 static enum operation_mode operation_mode = SORT;
-static const size_t max_look_back = 10000;
+static const size_t max_look_back = 100000;
 
 static void
 ring_reset(struct ring *r)