diff --git a/script/jitter_scan.py b/script/jitter_scan.py
index d7cbf5a..4c59554 100644
--- a/script/jitter_scan.py
+++ b/script/jitter_scan.py
@@ -217,6 +217,7 @@ p7.setColorScale(0.0, p_lim)
 p8.setColorScale(0.0, a_lim)
 p9.setColorScale(0.0, p_lim)
 """
+a_lim = 2.0e-4
 for p in get_plots("Jitter Scan"): 
     p.setColorScale(0.0, a_lim)