diff --git a/src/main/resources/com/puppycrawl/tools/checkstyle/grammars/java.g b/src/main/resources/com/puppycrawl/tools/checkstyle/grammars/java.g
index ba31d1bc8..494b128c8 100644
--- a/src/main/resources/com/puppycrawl/tools/checkstyle/grammars/java.g
+++ b/src/main/resources/com/puppycrawl/tools/checkstyle/grammars/java.g
@@ -1867,14 +1867,6 @@ BINARY_DIGIT
     :    ('0'|'1')
     ;
 
-
-// a dummy rule to force vocabulary to be all characters (except special
-//   ones that ANTLR uses internally (0 to 2)
-protected
-VOCAB
-    :    '\3'..'\377'
-    ;
-
 protected ID_START:
         '_' | '$' |
         (