--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassFile.java	Thu Dec 13 17:01:15 2018 +0100
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassFile.java	Thu Dec 13 19:06:11 2018 +0100
@@ -116,7 +116,8 @@
         V53(53, 0),   // JDK 1.9: modules, indy string concat
         V54(54, 0),   // JDK 10
         V55(55, 0),   // JDK 11: constant dynamic, nest mates
-        V56(56, 0);   // JDK 12
+        V56(56, 0),   // JDK 12
+        V57(57, 0);   // JDK 13
         Version(int major, int minor) {
             this.major = major;
             this.minor = minor;