diff --git a/scripts/convert-md-tree.sh b/scripts/convert-md-tree.sh
old mode 100644
new mode 100755
index 420d891..cc9e2b4
--- a/scripts/convert-md-tree.sh
+++ b/scripts/convert-md-tree.sh
@@ -89,7 +89,7 @@ while IFS= read -r -d '' FILE; do
     pandoc $PANDOC_ARGS "$FILE" -s -o "$OUT_FILE"
     echo "✅ Converted: $FILE -> $OUT_FILE"
   fi
-  ((CONVERTED++))
+  ((CONVERTED++)) || true
 done < <(find "$SRC" -type f -name '*.md' -print0)
 
 if $DRY_RUN; then