diff --git a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LaneType.java b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LaneType.java
index 6abf9f49947..53fa773555f 100644
--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LaneType.java
+++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LaneType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -65,7 +65,7 @@ enum LaneType {
         // int:128 or int:4 or float:16, report the size in the
         // printName.  If we do unsigned or vector or bit lane types,
         // report that condition also.
-        this.typeChar = printName.toUpperCase().charAt(0);
+        this.typeChar = genericElementType.getSimpleName().charAt(0);
         assert("FDBSIL".indexOf(typeChar) == ordinal()) : this;
         // Same as in JVMS, org.objectweb.asm.Opcodes, etc.:
         this.basicType = basicType;