diff --git a/matlab/@dprior/bounds.m b/matlab/@dprior/bounds.m
index d4047ba6e36b64d1641fe0d1189fe9844ab82879..d54cc7821d3ed3adc57f4395107a47ab6355ec5c 100644
--- a/matlab/@dprior/bounds.m
+++ b/matlab/@dprior/bounds.m
@@ -1,6 +1,6 @@
 function o = bounds(o, truncation, inplace)
 
-% Return true iff d is an admissible draw in a distribution characterized by o.
+% Prior truncation excluding probaility mass in the left and right tails.
 %
 % INPUTS
 % - o               [dprior]   Distribution specification for a n×1 vector of independent continuous random variables
@@ -9,6 +9,10 @@ function o = bounds(o, truncation, inplace)
 %
 % OUTPUTS
 % - lub             [double]   n×2 matrix, lower and upper bounds of the prior support
+%
+% REMARKS
+% o.p3 and o.p4 hold the lower and upper natural boundaries of the prior supports, o.lb and o.ub hold the lower and upper bounds
+% of the truncated prior distributions (excluding probability mass in the tails).
 
 % Copyright © 2024 Dynare Team
 %