diff --git a/src/lint/renderer/ArcanistLintConsoleRenderer.php b/src/lint/renderer/ArcanistLintConsoleRenderer.php
index cea91f50..bb295b96 100644
--- a/src/lint/renderer/ArcanistLintConsoleRenderer.php
+++ b/src/lint/renderer/ArcanistLintConsoleRenderer.php
@@ -5,7 +5,7 @@
  *
  * @group lint
  */
-final class ArcanistLintConsoleRenderer implements ArcanistLintRenderer {
+final class ArcanistLintConsoleRenderer extends ArcanistLintRenderer {
   private $showAutofixPatches = false;
 
   public function setShowAutofixPatches($show_autofix_patches) {
diff --git a/src/lint/renderer/ArcanistLintJSONRenderer.php b/src/lint/renderer/ArcanistLintJSONRenderer.php
index ce824224..1a3ee2eb 100644
--- a/src/lint/renderer/ArcanistLintJSONRenderer.php
+++ b/src/lint/renderer/ArcanistLintJSONRenderer.php
@@ -5,7 +5,7 @@
  *
  * @group lint
  */
-final class ArcanistLintJSONRenderer implements ArcanistLintRenderer {
+final class ArcanistLintJSONRenderer extends ArcanistLintRenderer {
   const LINES_OF_CONTEXT = 3;
 
   public function renderLintResult(ArcanistLintResult $result) {
diff --git a/src/lint/renderer/ArcanistLintLikeCompilerRenderer.php b/src/lint/renderer/ArcanistLintLikeCompilerRenderer.php
index 1b0f4323..435a134e 100644
--- a/src/lint/renderer/ArcanistLintLikeCompilerRenderer.php
+++ b/src/lint/renderer/ArcanistLintLikeCompilerRenderer.php
@@ -5,7 +5,7 @@
  *
  * @group lint
  */
-final class ArcanistLintLikeCompilerRenderer implements ArcanistLintRenderer {
+final class ArcanistLintLikeCompilerRenderer extends ArcanistLintRenderer {
   public function renderLintResult(ArcanistLintResult $result) {
     $lines = array();
     $messages = $result->getMessages();
diff --git a/src/lint/renderer/ArcanistLintRenderer.php b/src/lint/renderer/ArcanistLintRenderer.php
index 47b793fe..1b1c19fd 100644
--- a/src/lint/renderer/ArcanistLintRenderer.php
+++ b/src/lint/renderer/ArcanistLintRenderer.php
@@ -5,7 +5,9 @@
  *
  * @group lint
  */
-interface ArcanistLintRenderer {
-  public function renderLintResult(ArcanistLintResult $result);
-  public function renderOkayResult();
+abstract class ArcanistLintRenderer {
+
+  abstract public function renderLintResult(ArcanistLintResult $result);
+  abstract public function renderOkayResult();
+
 }
diff --git a/src/lint/renderer/ArcanistLintSummaryRenderer.php b/src/lint/renderer/ArcanistLintSummaryRenderer.php
index bb3542ba..adeae65c 100644
--- a/src/lint/renderer/ArcanistLintSummaryRenderer.php
+++ b/src/lint/renderer/ArcanistLintSummaryRenderer.php
@@ -5,7 +5,7 @@
  *
  * @group lint
  */
-final class ArcanistLintSummaryRenderer implements ArcanistLintRenderer {
+final class ArcanistLintSummaryRenderer extends ArcanistLintRenderer {
   public function renderLintResult(ArcanistLintResult $result) {
     $messages = $result->getMessages();
     $path = $result->getPath();