diff --git a/server/src/test/java/org/elasticsearch/cluster/metadata/DateMathExpressionResolverTests.java b/server/src/test/java/org/elasticsearch/cluster/metadata/DateMathExpressionResolverTests.java
index 9fe9f4d222c6c..698464b718bde 100644
--- a/server/src/test/java/org/elasticsearch/cluster/metadata/DateMathExpressionResolverTests.java
+++ b/server/src/test/java/org/elasticsearch/cluster/metadata/DateMathExpressionResolverTests.java
@@ -127,6 +127,7 @@ public void testExpression_MixedArray() throws Exception {
             formatDate("uuuu.MM", dateFromMillis(context.getStartTime()).withDayOfMonth(1))));
     }
 
+    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/78783")
     public void testExpression_CustomTimeZoneInIndexName() throws Exception {
         ZoneId timeZone;
         int hoursOffset;