pom.xml

@@ -4,7 +4,7 @@
   <groupId>org.jruby.joni</groupId>
   <artifactId>joni</artifactId>
   <packaging>jar</packaging>
-  <version>2.1.28-SNAPSHOT</version>
+  <version>2.1.29-SNAPSHOT</version>
   <name>Joni</name>
   <description>
     Java port of Oniguruma: http://www.geocities.jp/kosako3/oniguruma

src/org/joni/Lexer.java

@@ -1161,6 +1161,7 @@ class Lexer extends ScannerSupport {
                     break;
                 case 'K':
                     if (syntax.op2EscCapitalKKeep()) token.type = TokenType.KEEP;
+                    break;
                 default:
                     unfetch();
                     fetchEscapedValue();