diff --git a/.travis.yml b/.travis.yml
index cff47abdd0..a9dd9ade95 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -71,8 +71,8 @@ script:
   - export CI_BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}"
   - echo "CI_BRANCH=${CI_BRANCH}"
   - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
-    dir "C:\Program Files (x86)\";
-    "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x64;
+    dir 'C:\Program Files (x86)';
+    'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat' x64;
     ./build.cmd;
     fi
   - if [[ "$TRAVIS_OS_NAME" != "windows" ]]; then DEBUG=1 ./build.sh net-bootstrap < /dev/null; fi