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-rw-r--r--geiser/evaluation.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/geiser/evaluation.scm b/geiser/evaluation.scm
index 305ccfd..d7d0a68 100644
--- a/geiser/evaluation.scm
+++ b/geiser/evaluation.scm
@@ -50,6 +50,7 @@
(define (write-result result output)
(write (list (cons 'result result) (cons 'output output)))
+ (write-char #\nul)
(newline))
(define (call-with-result thunk)