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-rw-r--r--061text.mu4
1 files changed, 2 insertions, 2 deletions
diff --git a/061text.mu b/061text.mu
index bd5e8236..1ba93f75 100644
--- a/061text.mu
+++ b/061text.mu
@@ -289,8 +289,8 @@ def append a:address:array:character, b:address:array:character -> result:addres
   local-scope
   load-ingredients
   # handle null addresses
-  reply-unless a, b
-  reply-unless b, a
+  return-unless a, b
+  return-unless b, a
   # result = new character[a.length + b.length]
   a-len:number <- length *a
   b-len:number <- length *b