diff --git a/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java b/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java
index 49c05a3..3dee013 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/gitiles/FilteredRepository.java
@@ -144,7 +144,7 @@
   }
 
   @Override
-  public void notifyIndexChanged() {
+  public void notifyIndexChanged(boolean internal) {
     throw new UnsupportedOperationException(); // Gitiles is read-only.
   }