diff --git a/scripts/travis-gh-pages b/scripts/travis-gh-pages
index 6b92c08..46ded16 100755
--- a/scripts/travis-gh-pages
+++ b/scripts/travis-gh-pages
@@ -13,7 +13,7 @@ if [[ "$TRAVIS_BRANCH" == "master" && "$TRAVIS_PULL_REQUEST" == "false" && $TRAV
     cd ../gh-pages
     $currentDir/node_modules/.bin/gh-pages-generator
     # remove logo from README
-    sed -i "" -E "s/<img[^>]+ajv_logo[^>]+>//" index.md
+    sed -i -E "s/<img[^>]+ajv_logo[^>]+>//" index.md
     git config user.email "$GIT_USER_EMAIL"
     git config user.name "$GIT_USER_NAME"
     git add .