diff --git a/muted-tests.yml b/muted-tests.yml
index a265b166026c8..b86aad0d091d6 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -306,6 +306,7 @@ tests:
   method: testFailureLoadingFields
   issue: https://github.com/elastic/elasticsearch/issues/118000
 - class: org.elasticsearch.smoketest.SmokeTestMultiNodeClientYamlTestSuiteIT
+  method: test {yaml=indices.create/20_synthetic_source/create index with use_synthetic_source}
   issue: https://github.com/elastic/elasticsearch/issues/119191
 
 # Examples: