diff --git a/scripts/electron-build.sh b/scripts/electron-build.sh
index 05628991..3a3442d0 100755
--- a/scripts/electron-build.sh
+++ b/scripts/electron-build.sh
@@ -34,7 +34,7 @@ fi
 echo "running post_build.py"
 echo "travis branch: $TRAVIS_BRANCH"
 echo "PR #: $TRAVIS_PULL_REQUEST"
-if ! [ $TRAVIS_PULL_REQUEST ]; then
+if ! [[ $TRAVIS_PULL_REQUEST == 'false' ]]; then
     which python
     python scripts/post_build.py
     cat dist/*.sha256