diff --git a/src/one-body-sample.parset b/src/one-body-sample.parset
index 639a5ce08a285fd2fc4e67e22661f1b9da259473..93464c49580d39c3b76f478ed5fc88b69396f6f7 100644
--- a/src/one-body-sample.parset
+++ b/src/one-body-sample.parset
@@ -81,7 +81,7 @@ initial = -2.42037
 a = 0.0075
 b = 0.015
 # If L is too large, reaching a steady state takes too long
-L = 1e-3
+L = 1e-3 # 1e-3 for the Dirichlet case, 1e-5 - 1e-7 for the Neumann case
 
 # The second-order a and b terms in [..] are very important in
 # determining whether sliding is stable or unstable and (in appli-