1 files changed, 3 insertions, 1 deletions
diff --git a/core/src/test/java/org/elasticsearch/index/mapper/MapperServiceTests.java b/core/src/test/java/org/elasticsearch/index/mapper/MapperServiceTests.java
index 3c9a1c16d1..5543baff1a 100644
--- a/core/src/test/java/org/elasticsearch/index/mapper/MapperServiceTests.java
+++ b/core/src/test/java/org/elasticsearch/index/mapper/MapperServiceTests.java
@@ -20,9 +20,11 @@
 package org.elasticsearch.index.mapper;
 
 import org.elasticsearch.ExceptionsHelper;
+import org.elasticsearch.common.bytes.BytesArray;
 import org.elasticsearch.common.compress.CompressedXContent;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.xcontent.XContentFactory;
+import org.elasticsearch.common.xcontent.XContentType;
 import org.elasticsearch.index.IndexService;
 import org.elasticsearch.index.mapper.KeywordFieldMapper.KeywordFieldType;
 import org.elasticsearch.index.mapper.MapperService.MergeReason;
@@ -91,7 +93,7 @@ public class MapperServiceTests extends ESSingleNodeTestCase {
     public void testIndexIntoDefaultMapping() throws Throwable {
         // 1. test implicit index creation
         ExecutionException e = expectThrows(ExecutionException.class, () -> {
-            client().prepareIndex("index1", MapperService.DEFAULT_MAPPING, "1").setSource("{}").execute().get();
+            client().prepareIndex("index1", MapperService.DEFAULT_MAPPING, "1").setSource("{}", XContentType.JSON).execute().get();
         });
         Throwable throwable = ExceptionsHelper.unwrapCause(e.getCause());
         if (throwable instanceof IllegalArgumentException) {