diff --git a/server/src/main/java/org/elasticsearch/index/shard/IndexingStats.java b/server/src/main/java/org/elasticsearch/index/shard/IndexingStats.java
index d93d1dd098e6f..63e5fdfc6e209 100644
--- a/server/src/main/java/org/elasticsearch/index/shard/IndexingStats.java
+++ b/server/src/main/java/org/elasticsearch/index/shard/IndexingStats.java
@@ -351,6 +351,7 @@ public int hashCode() {
 
     static final class Fields {
         static final String INDEXING = "indexing";
+        static final String TYPES = "types";
         static final String INDEX_TOTAL = "index_total";
         static final String INDEX_TIME = "index_time";
         static final String INDEX_TIME_IN_MILLIS = "index_time_in_millis";