diff --git a/tajo-algebra/src/main/java/org/apache/tajo/algebra/ExistsPredicate.java b/tajo-algebra/src/main/java/org/apache/tajo/algebra/ExistsPredicate.java
index 389fd743e2..fa8b3d4e44 100644
--- a/tajo-algebra/src/main/java/org/apache/tajo/algebra/ExistsPredicate.java
+++ b/tajo-algebra/src/main/java/org/apache/tajo/algebra/ExistsPredicate.java
@@ -27,7 +27,7 @@ public class ExistsPredicate extends UnaryOperator {
   private boolean not;
 
   public ExistsPredicate(SimpleTableSubQuery simpleTableSubQuery, boolean not) {
-    super(OpType.InPredicate);
+    super(OpType.ExistsPredicate);
     this.not = not;
     setChild(simpleTableSubQuery);
   }