diff --git a/src/idl/dustem_collect_wav.pro b/src/idl/dustem_collect_wav.pro
index b81c87e..e6588de 100755
--- a/src/idl/dustem_collect_wav.pro
+++ b/src/idl/dustem_collect_wav.pro
@@ -4,6 +4,8 @@ FUNCTION dustem_collect_wav,filt_names
 ;requested filters.
 ;sort them in increasing order and removes duplicates.
 
+; need to write doc help section
+
 Nfilt=n_elements(filt_names)
 all_wavs=[0.D0]
 
--
libgit2 0.21.2