diff --git a/x-pack/plugin/analytics/src/test/java/org/elasticsearch/xpack/analytics/mapper/TDigestFieldBlockLoaderTests.java b/x-pack/plugin/analytics/src/test/java/org/elasticsearch/xpack/analytics/mapper/TDigestFieldBlockLoaderTests.java
index 4b23e41a86636..6a8f1bb23d04d 100644
--- a/x-pack/plugin/analytics/src/test/java/org/elasticsearch/xpack/analytics/mapper/TDigestFieldBlockLoaderTests.java
+++ b/x-pack/plugin/analytics/src/test/java/org/elasticsearch/xpack/analytics/mapper/TDigestFieldBlockLoaderTests.java
@@ -73,7 +73,7 @@ public DataSourceResponse.FieldDataGenerator handle(DataSourceRequest.FieldDataG
                 return null;
             }
             return new DataSourceResponse.FieldDataGenerator(
-                mapping -> TDigestFieldMapperTests.generateRandomFieldValues(randomIntBetween(0, 1_000))
+                mapping -> TDigestFieldMapperTests.generateRandomFieldValues(randomIntBetween(1, 1_000))
             );
         }
     };