diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java b/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java
index 0741fc2..43b4857 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/DefaultRenderer.java
@@ -15,6 +15,7 @@
 package com.google.gitiles;
 
 import com.google.common.base.Function;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.io.Resources;
 import com.google.template.soy.SoyFileSet;
@@ -28,7 +29,7 @@
   private final SoyTofu tofu;
 
   DefaultRenderer() {
-    this("", null, "");
+    this("", ImmutableList.<URL> of(), "");
   }
 
   public DefaultRenderer(String staticPrefix, Iterable<URL> customTemplates, String siteTitle) {
diff --git a/gitiles-servlet/src/test/java/com/google/gitiles/TestGitilesServlet.java b/gitiles-servlet/src/test/java/com/google/gitiles/TestGitilesServlet.java
index 84ddd64..0b8512f 100644
--- a/gitiles-servlet/src/test/java/com/google/gitiles/TestGitilesServlet.java
+++ b/gitiles-servlet/src/test/java/com/google/gitiles/TestGitilesServlet.java
@@ -57,8 +57,8 @@
     final String repoName =
         repo.getRepository().getDescription().getRepositoryName();
     GitilesServlet servlet =
-        new GitilesServlet(new Config(), new DebugRenderer(
-            GitilesServlet.STATIC_PREFIX, null, null, repoName + " test site"),
+        new GitilesServlet(new Config(), new DebugRenderer(GitilesServlet.STATIC_PREFIX,
+              ImmutableList.<String> of(), null, repoName + " test site"),
             TestGitilesUrls.URLS, new TestGitilesAccess(repo.getRepository()),
             new RepositoryResolver<HttpServletRequest>() {
               @Override