diff --git a/.travis.yml b/.travis.yml
index ca5b1c55..e12af41f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ install:
   && ./update_gcc_version.sh 4.9
   && rm update_gcc_version.sh
 - sudo apt-get install libfuse-dev
+#  Use /dev/urandom when /dev/random is accessed, because travis doesn't have enough entropy
 - sudo cp -a /dev/urandom /dev/random
 before_script:
 - wget https://raw.githubusercontent.com/smessmer/travis-utils/master/setup_biicode_project.sh