diff --git a/ext/ripper/lib/ripper/lexer.rb b/ext/ripper/lib/ripper/lexer.rb
index 05af8445fc..8aad81b74b 100644
--- a/ext/ripper/lib/ripper/lexer.rb
+++ b/ext/ripper/lib/ripper/lexer.rb
@@ -54,7 +54,7 @@ class Ripper
       def pretty_print(q) q.text(to_s) end
       def ==(i) super or to_int == i end
       def &(i) self.class.new(to_int & i) end
-      def |(i) self.class.new(to_int & i) end
+      def |(i) self.class.new(to_int | i) end
       def allbits?(i) to_int.allbits?(i) end
       def anybits?(i) to_int.anybits?(i) end
       def nobits?(i) to_int.nobits?(i) end