diff --git a/Sound Fields/MATLAB/Functions/ptSrcFieldTD.m b/Sound Fields/MATLAB/Functions/ptSrcFieldTD.m
index 909e7808f4a9562addb29fb337adf3682a49feb1..83013985c01109d97da8612bdc361cbb594a42da 100644
--- a/Sound Fields/MATLAB/Functions/ptSrcFieldTD.m	
+++ b/Sound Fields/MATLAB/Functions/ptSrcFieldTD.m	
@@ -61,6 +61,9 @@
 % --------------------------------------------------
 % Notes
 % 
+% Dependencies: - twoPtDist(): To calculate the distances between sources
+%                              and receivers.
+% 
 % - It is the responsibility of the user to pick (or provide) adequately
 %   long source signals
 %