1 files changed, 1 insertions, 1 deletions
diff --git a/api/src/test/java/io/opencensus/stats/AggregationTest.java b/api/src/test/java/io/opencensus/stats/AggregationTest.java
index c2e6a716..cf337030 100644
--- a/api/src/test/java/io/opencensus/stats/AggregationTest.java
+++ b/api/src/test/java/io/opencensus/stats/AggregationTest.java
@@ -50,7 +50,7 @@ public class AggregationTest {
   @Test
   public void testNullBucketBoundaries() {
     thrown.expect(NullPointerException.class);
-    thrown.expectMessage("bucketBoundaries should not be null.");
+    thrown.expectMessage("bucketBoundaries");
     Distribution.create(null);
   }