diff --git a/rnaseq/step2_trim/snippet.sh b/rnaseq/step2_trim/snippet.sh
index ebf0200..1ae866f 100644
--- a/rnaseq/step2_trim/snippet.sh
+++ b/rnaseq/step2_trim/snippet.sh
@@ -6,6 +6,11 @@
 module load Trimmomatic
 
 
+# Adapters can be found at
+# https://github.com/timflutre/trimmomatic/tree/master/adapters
+# But should be verified with FastQC, or in another way.
+
+
 # (Example) Paired end
 java -jar $EBROOTTRIMMOMATIC/trimmomatic.jar PE \
   -phred33 \