diff --git a/pom.xml b/pom.xml
index 42aefc1..cf6f7f6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,6 +68,7 @@
               <manifestEntries>
                 <Gerrit-Module>com.googlesource.gerrit.plugins.gitiles.Module</Gerrit-Module>
                 <Gerrit-HttpModule>com.googlesource.gerrit.plugins.gitiles.HttpModule</Gerrit-HttpModule>
+                <Gerrit-InitStep>com.googlesource.gerrit.plugins.gitiles.InitGitiles</Gerrit-InitStep>
 
                 <!-- Gitiles uses /repo to access a repo, so the default plugin layout would
                      disallow repos named "static" or "Documentation". Paths starting with + are
diff --git a/src/main/java/com/googlesource/gerrit/plugins/gitiles/InitGitiles.java b/src/main/java/com/googlesource/gerrit/plugins/gitiles/InitGitiles.java
new file mode 100644
index 0000000..4ffa9ac
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/gitiles/InitGitiles.java
@@ -0,0 +1,76 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.googlesource.gerrit.plugins.gitiles;
+
+import com.google.gerrit.pgm.init.InitFlags;
+import com.google.gerrit.pgm.init.InitStep;
+import com.google.gerrit.pgm.init.Section;
+import com.google.gerrit.pgm.util.ConsoleUI;
+import com.google.gerrit.server.config.SitePaths;
+import com.google.inject.Inject;
+
+import org.eclipse.jgit.storage.file.FileBasedConfig;
+
+import java.io.File;
+import java.io.IOException;
+
+class InitGitiles implements InitStep {
+  private final ConsoleUI ui;
+  private final Section gitweb;
+  private final FileBasedConfig cfg;
+  private final File gitilesConfig;
+
+  @Inject
+  InitGitiles(InitFlags flags, ConsoleUI ui, Section.Factory sections,
+      SitePaths sitePaths) {
+    this.ui = ui;
+    this.gitweb = sections.get("gitweb", null);
+    this.cfg = flags.cfg;
+    this.gitilesConfig = new File(sitePaths.etc_dir, "gitiles.config");
+  }
+
+  @Override
+  public void run() throws IOException {
+    ui.header("Gitiles");
+    if (!confirm()) {
+      return;
+    }
+
+    gitweb.set("type", "custom");
+    gitweb.set("linkname", "gitiles");
+    gitweb.unset("cgi");
+    gitweb.unset("pathSeparator");
+    gitweb.set("url", "plugins/gitiles/");
+    gitweb.set("revision", "${project}/+/${commit}");
+    gitweb.set("project", "${project}");
+    gitweb.set("branch", "${project}/+/${branch}");
+    gitweb.set("filehistory", "${project}/+log/${branch}/${file}");
+
+    // Configuration is mainly done in code. Create an empty config file so the
+    // user knows where to put additional configuration.
+    gitilesConfig.createNewFile();
+  }
+
+  private boolean confirm() {
+    if (!cfg.getSections().contains("gitweb")) {
+      return ui.yesno(true, "Configure Gitiles source browser");
+    }
+    if ("custom".equalsIgnoreCase(cfg.getString("gitweb", null, "type"))
+        && "gitiles".equalsIgnoreCase(cfg.getString("gitweb", null, "linkname"))) {
+      return ui.yesno(false, "Restore default Gitiles config");
+    }
+    return ui.yesno(false, "Override existing gitweb config with Gitiles");
+  }
+}