diff --git a/utilities/unsuppressed_output_file.m b/utilities/unsuppressed_output_file.m
index 35864242885e839b0d864821465046d7e6e84f89..924a2590cde3a827c8fe6db9afc8a39ece678731 100644
--- a/utilities/unsuppressed_output_file.m
+++ b/utilities/unsuppressed_output_file.m
@@ -1,4 +1,9 @@
 function [] = unsuppressed_output_file(file)
+% [] = unsuppressed_output_file(file)
+%
+% Outputs to the command window a list of the lines in file which likely do 
+% not have suppressed output. Lines with keywords which will not produce outputs ie
+% (if, else, continue, function, etc.) are ignored.
 
 % look through a file for lines which are unsuppressed