diff --git a/lib/chibi/syntax-case.sld b/lib/chibi/syntax-case.sld
index 9b46ceb3..4d1bb794 100644
--- a/lib/chibi/syntax-case.sld
+++ b/lib/chibi/syntax-case.sld
@@ -3,7 +3,7 @@
 	  syntax-case syntax quasisyntax unsyntax unsyntax-splicing
 	  datum->syntax syntax->datum
 	  generate-temporaries with-syntax syntax-violation
-	  with-ellipsis)
+	  with-ellipsis ellipsis-identifier=?)
   (import (chibi)
 	  (chibi ast)
 	  (meta)