1 files changed, 1 insertions, 1 deletions
diff --git a/emit.sig b/emit.sig
index 9b0d88d..ecd26f4 100644
--- a/emit.sig
+++ b/emit.sig
@@ -2,5 +2,5 @@ signature EMIT = sig
 
   structure I: IL
 
-  val emit: string -> I.ctx -> unit
+  val emit: string -> I.ctx -> string option -> unit
 end