diff --git a/plugin/trino-oracle/src/main/java/io/trino/plugin/oracle/OracleClient.java b/plugin/trino-oracle/src/main/java/io/trino/plugin/oracle/OracleClient.java
index c42342d85be2..157269cd3a2f 100644
--- a/plugin/trino-oracle/src/main/java/io/trino/plugin/oracle/OracleClient.java
+++ b/plugin/trino-oracle/src/main/java/io/trino/plugin/oracle/OracleClient.java
@@ -588,7 +588,7 @@ public static LongWriteFunction oracleTimestampWithTimeZoneWriteFunction()
     {
         return LongWriteFunction.of(OracleTypes.TIMESTAMPTZ, (statement, index, encodedTimeWithZone) -> {
             Instant time = Instant.ofEpochMilli(unpackMillisUtc(encodedTimeWithZone));
-            ZoneId zone = ZoneId.of(unpackZoneKey(encodedTimeWithZone).getId());
+            ZoneId zone = unpackZoneKey(encodedTimeWithZone).getZoneId();
             statement.setObject(index, time.atZone(zone));
         });
     }