diff --git a/src/main/java/com/loafle/overflow/crawler/result/OFResultSet.java b/src/main/java/com/loafle/overflow/crawler/result/OFResultSet.java
index 50b36ed..f1ba219 100644
--- a/src/main/java/com/loafle/overflow/crawler/result/OFResultSet.java
+++ b/src/main/java/com/loafle/overflow/crawler/result/OFResultSet.java
@@ -43,7 +43,7 @@ public abstract class OFResultSet {
     // methods
     static public OFResultSet newInstance(Item item) {
         String type = (String) item.getQuery().getQueryInfo().get("parseDirection");
-        if (type.equals("row")) {
+        if (type != null && type.equals("row")) {
             return new OFResultSetRow(item);
         } else {
             return new OFResultSetCol(item);