diff --git a/matlab/tfgm/utils/plot_mask.m b/matlab/tfgm/utils/plot_mask.m
index f2180c7adc23e5892ab6b6c9fb8bc1c30c4242f5..5cd3775eae94cf6325c5f074a0ff12cfbc02d6a6 100644
--- a/matlab/tfgm/utils/plot_mask.m
+++ b/matlab/tfgm/utils/plot_mask.m
@@ -1,13 +1,13 @@
 function plot_mask(mask, hop, nbins, fs)
 
 %% plot_mask(mask, hop, nbins, fs)
-% % This function displays the mask
+% Plot time-frequency mask
 %
 % Inputs:
-%    - mask: binary mask
-%    - hop : length of time shift (int)
-%    - nbins: numbers of channels (int)
-%    - fs : sampling frequency
+%    - mask: Time-frequency mask
+%    - hop (int): Hop size
+%    - nbins (int):  Number of frequency bins
+%    - fs (int): Sampling frequency
 
 % Author : A. Marina KREME
 %%