1 files changed, 3 insertions, 1 deletions
diff --git a/ppc.sig b/ppc.sig
index c82c600..53d4ed2 100644
--- a/ppc.sig
+++ b/ppc.sig
@@ -9,9 +9,11 @@ signature PPC = sig
     Ctk of T.token |
     Cid |
     Cconst |
+    Cstrlit |
     Cunop |
     Cbinop |
-    Cop
+    Cop |
+    Cexpr
 
   val clerror: tkPos -> tkClass list -> 'a
   val error: tkPos -> ((bool * ((string -> unit) * (unit -> unit)))