diff --git a/.github/workflows/upgrade.yml b/.github/workflows/upgrade.yml
index 9ce0483..6527ccd 100644
--- a/.github/workflows/upgrade.yml
+++ b/.github/workflows/upgrade.yml
@@ -46,11 +46,20 @@ jobs:
             if [ $EXISTING_PR -eq 0 ]
             then
               TITLE="syslog-ng-cfg-helper: $VERSION"
-              BODY="Generate from https://pypi.org/project/syslog-ng-cfg-helper/$VERSION"
+              BODY=$(mktemp)
+              echo "Generated from https://pypi.org/project/syslog-ng-cfg-helper/$VERSION" > $BODY
+              echo >> $BODY
+              echo 'For your convenience, here is a human-readable diff of the change:' >> $BODY
+              echo '```diff' >> $BODY
+              set +e
+              diff -u --label a/syntax/syslog-ng.vim <(git diff syntax/syslog-ng.vim | grep '^-syn keyword' | tr ' ' '\n' | tail -n +3) \
+                      --label b/syntax/syslog-ng.vim <(git diff syntax/syslog-ng.vim | grep '^+syn keyword' | tr ' ' '\n' | tail -n +3) >> $BODY
+              set -e
+              echo '```' >> $BODY
               git switch -c "$BRANCH"
               git commit -a -s -m "$TITLE"
               git push --force origin "$BRANCH"
-              gh pr create --title "$TITLE" --body "$BODY"
+              gh pr create --title "$TITLE" --body-file "$BODY"
             else
               echo "Pull Request already exists"
             fi
diff --git a/generate b/generate
index ddad3f4..4be73aa 100755
--- a/generate
+++ b/generate
@@ -16,7 +16,7 @@ db = JSON.parse(File.read(ARGV[0]))
 def find_keywords(hash)
   keywords = []
   hash.each do |key, value|
-    if key == 'name' && value && !value.start_with?('<')
+    if key == 'name' && value && value.is_a?(String) && !value.start_with?('<')
       keywords << value
       keywords << value.gsub('-', '_')
     elsif value.is_a?(Hash)