diff --git a/bin/on-changes-publish-ui b/bin/on-changes-publish-ui
index 02b287f9..6f22c991 100755
--- a/bin/on-changes-publish-ui
+++ b/bin/on-changes-publish-ui
@@ -4,5 +4,9 @@
 # Prelude
 #
 set -euo pipefail
+# Set internal field seperator to `/` to split up urls
+IFS='/'
 
-[[ $(git diff --name-only) == *"ui/"* ]] && make -C ui publish | sed '/NPM_TOKEN/d'
+read -ra ADDR <<< "$CIRCLE_COMPARE_URL"
+
+[[ $(git diff --name-only "${ADDR[-1]}") == *"ui/"* ]] && make -C ui publish | sed '/NPM_TOKEN/d'