diff --git a/matlab/peak_detect.m b/matlab/peak_detect.m
index e3121ac..1008fc4 100644
--- a/matlab/peak_detect.m
+++ b/matlab/peak_detect.m
@@ -35,7 +35,7 @@ ks = 0.5;
 pa = 0.3;
 d_max = 30;
 
-am = 0.02;
+am = 0.04;
 as = 0.9;
 Ad = 20;
 Cm = 0;