diff --git a/jdk/test/TEST.groups b/jdk/test/TEST.groups
index d8a28b3fb74..1ec1b7d375c 100644
--- a/jdk/test/TEST.groups
+++ b/jdk/test/TEST.groups
@@ -30,6 +30,7 @@ tier1 = \
     -java/lang/ProcessHandle/TreeTest.java \
     -java/util/zip/TestLocalTime.java \
     :jdk_util \
+    -java/util/concurrent/Phaser/Basic.java \
     sun/nio/cs/ISO8859x.java \
     java/nio/Buffer \
     com/sun/crypto/provider/Cipher \
@@ -38,6 +39,7 @@ tier1 = \
 tier2 = \
     java/lang/ProcessHandle/TreeTest.java \
     java/util/zip/TestLocalTime.java \
+    java/util/concurrent/Phaser/Basic.java \
     :jdk_io \
     :jdk_nio \
     -sun/nio/cs/ISO8859x.java \
diff --git a/jdk/test/java/util/concurrent/Phaser/Basic.java b/jdk/test/java/util/concurrent/Phaser/Basic.java
index 401b983e189..c516a969b39 100644
--- a/jdk/test/java/util/concurrent/Phaser/Basic.java
+++ b/jdk/test/java/util/concurrent/Phaser/Basic.java
@@ -34,6 +34,7 @@
 /*
  * @test
  * @bug 6445158
+ * @key intermittent
  * @summary Basic tests for Phaser
  * @author Chris Hegarty
  */