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-rw-r--r--src/lacweb.grm2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lacweb.grm b/src/lacweb.grm
index 17bc31cc..3b85df07 100644
--- a/src/lacweb.grm
+++ b/src/lacweb.grm
@@ -97,6 +97,8 @@ val s = ErrorMsg.spanOf
%%
file : decls (decls)
+ | SIG sgis ([(DSgn ("?", (SgnConst sgis, s (SIGleft, sgisright))),
+ s (SIGleft, sgisright))])
decls : ([])
| decl decls (decl :: decls)