diff --git a/lib/coderay/scanners/java.rb b/lib/coderay/scanners/java.rb
index 962154eb..5fde4339 100644
--- a/lib/coderay/scanners/java.rb
+++ b/lib/coderay/scanners/java.rb
@@ -44,7 +44,7 @@ class Java < Scanner
       '"' => /[^\\"]+/,
       '/' => /[^\\\/]+/,
     }  # :nodoc:
-    IDENT = /[a-zA-Z_][A-Za-z_0-9]*/  # :nodoc:
+    IDENT = /[[[:alpha:]]_][[[:alnum:]]_]*/  # :nodoc:
     
   protected