diff --git a/ci/deploy_from_travis.sh b/ci/deploy_from_travis.sh
index f6ae070502..4f1fde7bbb 100755
--- a/ci/deploy_from_travis.sh
+++ b/ci/deploy_from_travis.sh
@@ -2,20 +2,18 @@
 
 set -e
 
-SHA=`git rev-parse --verify HEAD`
-
 git config user.name "$COMMIT_AUTHOR"
 git config user.email "$COMMIT_AUTHOR_EMAIL"
 git checkout --orphan gh-pages
 git rm --cached -r .
 echo "# Automatic build" > README.md
-echo "Built website from {$SHA}. See https://github.com/ethereum/browser-solidity/ for details." >> README.md
-echo "To use an offline copy, download browser-solidity-$SHA.zip." >> README.md
+echo "Built website from {$TRAVIS_COMMIT}. See https://github.com/ethereum/browser-solidity/ for details." >> README.md
+echo "To use an offline copy, download browser-solidity-$TRAVIS_COMMIT.zip." >> README.md
 # ZIP the whole directory
-zip -r browser-solidity-$SHA.zip $FILES_TO_PACKAGE
+zip -r browser-solidity-$TRAVIS_COMMIT.zip $FILES_TO_PACKAGE
 # -f is needed because "build" is part of .gitignore
-git add -f $FILES_TO_PACKAGE browser-solidity-$SHA.zip
-git commit -m "Built website from {$SHA}."
+git add -f $FILES_TO_PACKAGE browser-solidity-$TRAVIS_COMMIT.zip
+git commit -m "Built website from {$TRAVIS_COMMIT}."
 
 ENCRYPTED_KEY_VAR="encrypted_${ENCRYPTION_LABEL}_key"
 ENCRYPTED_IV_VAR="encrypted_${ENCRYPTION_LABEL}_iv"