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-rw-r--r--src/cjr.sml2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cjr.sml b/src/cjr.sml
index 3a37b26f..8cbabdcc 100644
--- a/src/cjr.sml
+++ b/src/cjr.sml
@@ -78,7 +78,7 @@ datatype exp' =
| ECase of exp * (pat * exp) list * { disc : typ, result : typ }
| EError of exp * typ
- | EReturnBlob of {blob : exp, mimeType : exp, t : typ}
+ | EReturnBlob of {blob : exp option, mimeType : exp, t : typ}
| ERedirect of exp * typ
| EWrite of exp