diff --git a/maxatac/analyses/prepare.py b/maxatac/analyses/prepare.py
index adb0995..fa0219b 100644
--- a/maxatac/analyses/prepare.py
+++ b/maxatac/analyses/prepare.py
@@ -154,6 +154,7 @@ def run_prepare(args):
     args.max = False
     args.max_percentile = 99
     args.clip = False
+    args.max_zooms = 5
     
     # Minmax normalize signal tracks
     run_normalization(args)