diff --git a/minproto.leg b/minproto.leg
index da4d4de..3c5a7b5 100644
--- a/minproto.leg
+++ b/minproto.leg
@@ -3392,6 +3392,7 @@ SLASHEQ = "/="          -
 PCENT   = "%"  ![=]     -
 PCENTEQ = "%="          -
 DOT     = "."  ![.]     -
+DOTDOT  = ".."          -
 PLING   = "!"  ![=]     -
 TILDE   = "~"           -