diff --git a/.travis.yml b/.travis.yml
index 510a86e..c490696 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,40 +3,49 @@ addons:
   apt_packages:
   - zsh
   - ksh
+
 before_install:
   - curl --version
   - wget --version
+
 install:
   - (mkdir /tmp/urchin && cd /tmp/urchin && curl -s "$(curl -s https://registry.npmjs.com/urchin | grep -Eo '"tarball":\s*"[^"]+"' | tail -n 1 | awk -F\" '{ print $4 }')" -O && tar -x -f urchin*)
   - chmod +x /tmp/urchin/package/urchin
   - '[ -z "$WITHOUT_CURL" ] || sudo apt-get remove curl -y'
+
 script:
   - export PATH=$(echo $PATH | sed 's/::/:/')
   - NVM_DIR=$TRAVIS_BUILD_DIR make TEST_SUITE=$TEST_SUITE URCHIN=/tmp/urchin/package/urchin test-$SHELL
+
 env:
   - SHELL=bash TEST_SUITE=install_script
+
   - SHELL=sh TEST_SUITE=fast
   - SHELL=dash TEST_SUITE=fast
   - SHELL=bash TEST_SUITE=fast
   - SHELL=zsh TEST_SUITE=fast
-#  - SHELL=ksh TEST_SUITE=fast
+  # - SHELL=ksh TEST_SUITE=fast
+
   - SHELL=sh TEST_SUITE=slow
   - SHELL=dash TEST_SUITE=slow
   - SHELL=bash TEST_SUITE=slow
   - SHELL=zsh TEST_SUITE=slow
-#  - SHELL=ksh TEST_SUITE=slow
+  # - SHELL=ksh TEST_SUITE=slow
+
   - SHELL=sh TEST_SUITE=sourcing
   - SHELL=dash TEST_SUITE=sourcing
   - SHELL=bash TEST_SUITE=sourcing
   - SHELL=zsh TEST_SUITE=sourcing
-#  - SHELL=ksh TEST_SUITE=sourcing
+  # - SHELL=ksh TEST_SUITE=sourcing
+
   - SHELL=sh TEST_SUITE=installation
-#  - SHELL=sh TEST_SUITE=installation WITHOUT_CURL=1
   - SHELL=dash TEST_SUITE=installation
-#  - SHELL=dash TEST_SUITE=installation WITHOUT_CURL=1
   - SHELL=bash TEST_SUITE=installation
-#  - SHELL=bash TEST_SUITE=installation WITHOUT_CURL=1
   - SHELL=zsh TEST_SUITE=installation
-#  - SHELL=zsh TEST_SUITE=installation WITHOUT_CURL=1
-#  - SHELL=ksh TEST_SUITE=installation
-#  - SHELL=ksh TEST_SUITE=installation WITHOUT_CURL=1
+  # - SHELL=ksh TEST_SUITE=installation
+
+  # - SHELL=sh TEST_SUITE=installation WITHOUT_CURL=1
+  # - SHELL=dash TEST_SUITE=installation WITHOUT_CURL=1
+  # - SHELL=bash TEST_SUITE=installation WITHOUT_CURL=1
+  # - SHELL=zsh TEST_SUITE=installation WITHOUT_CURL=1
+  # - SHELL=ksh TEST_SUITE=installation WITHOUT_CURL=1