diff --git a/data/config.ini b/data/config.ini
index b9b2d50..3b784bc 100644
--- a/data/config.ini
+++ b/data/config.ini
@@ -14,7 +14,7 @@ root=out
 sub=bathy_sub.npy
 out=bathy.npy
 step=1
-left=0
+left=-300
 right=150
 
 [artha]