diff --git a/muted-tests.yml b/muted-tests.yml
index d38a3a7abd730..2b10565aa0365 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -250,6 +250,9 @@ tests:
 - class: org.elasticsearch.upgrades.DataStreamsUpgradeIT
   method: testUpgradeDataStream
   issue: https://github.com/elastic/elasticsearch/issues/119717
+- class: org.elasticsearch.xpack.esql.optimizer.LocalPhysicalPlanOptimizerTests
+  method: testSingleMatchFunctionFilterPushdownWithStringValues {default}
+  issue: https://github.com/elastic/elasticsearch/issues/119720
 
 # Examples:
 #