diff --git a/src/main/java/com/google/gerrit/elasticsearch/ElasticQueryBuilder.java b/src/main/java/com/google/gerrit/elasticsearch/ElasticQueryBuilder.java
index b0dd2ad..34cd354 100644
--- a/src/main/java/com/google/gerrit/elasticsearch/ElasticQueryBuilder.java
+++ b/src/main/java/com/google/gerrit/elasticsearch/ElasticQueryBuilder.java
@@ -39,6 +39,8 @@
       return or(p);
     } else if (p instanceof NotPredicate) {
       return not(p);
+    } else if (p instanceof Predicate.Any) {
+      return QueryBuilders.matchAllQuery();
     } else if (p instanceof IndexPredicate) {
       return fieldQuery((IndexPredicate<T>) p);
     } else if (p instanceof PostFilterPredicate) {