diff --git a/oauth2_http/java/com/google/auth/oauth2/ComputeEngineCredentials.java b/oauth2_http/java/com/google/auth/oauth2/ComputeEngineCredentials.java
index 305353f79..0fa31870f 100644
--- a/oauth2_http/java/com/google/auth/oauth2/ComputeEngineCredentials.java
+++ b/oauth2_http/java/com/google/auth/oauth2/ComputeEngineCredentials.java
@@ -139,7 +139,6 @@ private ComputeEngineCredentials(ComputeEngineCredentials.Builder builder) {
             getFromServiceLoader(HttpTransportFactory.class, OAuth2Utils.HTTP_TRANSPORT_FACTORY));
     this.transportFactoryClassName = this.transportFactory.getClass().getName();
 
-    Collection<String> scopes = builder.getScopes();
     // Use defaultScopes only when scopes don't exist.
     Collection<String> scopesToUse = builder.scopes;
     if (scopesToUse == null || scopesToUse.isEmpty()) {