diff --git a/.travis.yml b/.travis.yml
index 010dd74e..3ff1f349 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,8 +10,8 @@ install:
   - powrap --version
 script:
   - CHANGED_FILES="$(git diff --name-only $TRAVIS_COMMIT_RANGE | grep '\.po$';:)"
-  - echo "$(printf "%s\n" "$CHANGED_FILES" | wc -l) files changed."
-  - echo "$CHANGED_FILES" | sed 's/^/- /'
+  - 'printf "%s files changed.\n" "$(printf "%s" "$CHANGED_FILES" | wc -l)"'
+  - 'printf -- "- %s\n" $CHANGED_FILES | grep -v "^- $"'
   - '[ -n "$CHANGED_FILES" ] && powrap --check --quiet $CHANGED_FILES || echo "Nothing to check"'
   - '[ -n "$CHANGED_FILES" ] && pospell -p dict -l fr_FR $CHANGED_FILES || echo "Nothing to check"'
   - '[ -n "$CHANGED_FILES" ] && make CPYTHON_CLONE=/tmp/cpython/ COMMIT=4d1abedce9422473af2ac78047e55cde73208208 || echo "Nothing to build"'