diff --git a/gax/src/test/java/com/google/api/gax/rpc/ClientContextTest.java b/gax/src/test/java/com/google/api/gax/rpc/ClientContextTest.java
index 58a007644..174b35164 100644
--- a/gax/src/test/java/com/google/api/gax/rpc/ClientContextTest.java
+++ b/gax/src/test/java/com/google/api/gax/rpc/ClientContextTest.java
@@ -499,7 +499,6 @@ public Credentials getCredentials() throws IOException {
 
   @Test
   public void testHidingQuotaProjectId_noQuotaSetFromSetting() throws IOException {
-    final String QUOTA_PROJECT_ID_KEY = "x-goog-user-project";
     FakeClientSettings.Builder builder = new FakeClientSettings.Builder();
 
     InterceptingExecutor executor = new InterceptingExecutor(1);