diff --git a/janusgraph-test/src/test/java/org/janusgraph/graphdb/predicate/OrJanusPredicateTest.java b/janusgraph-test/src/test/java/org/janusgraph/graphdb/predicate/OrJanusPredicateTest.java
index 2b869d2aea..b3e1f632f8 100644
--- a/janusgraph-test/src/test/java/org/janusgraph/graphdb/predicate/OrJanusPredicateTest.java
+++ b/janusgraph-test/src/test/java/org/janusgraph/graphdb/predicate/OrJanusPredicateTest.java
@@ -47,8 +47,10 @@ ConnectiveJanusPredicate getNegatePredicate(List<JanusGraphPredicate> childPredi
 
     @Test
     public void testIsQNF() {
-        assertTrue(getPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL)).isQNF());
-        assertTrue(getPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL, new OrJanusPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL)))).isQNF());
-        assertFalse(getPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL, new AndJanusPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL)))).isQNF());
+        assertTrue(getPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL)).isQNF(), "Single PREFIX EQUAL should be QNF");
+        assertTrue(getPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL, new OrJanusPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL)))).isQNF(), 
+            "PREFIX EQUAL with OR(JANUS(PREFIX EQUAL)) should be QNF");
+        assertFalse(getPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL, new AndJanusPredicate(Arrays.asList(Text.PREFIX, Cmp.EQUAL)))).isQNF(), 
+            "PREFIX EQUAL with AND(JANUS(PREFIX EQUAL)) should not be QNF");
     }
 }