1 files changed, 1 insertions, 1 deletions
diff --git a/stdlib/source/specification/compositor/generation/primitive.lux b/stdlib/source/specification/compositor/generation/primitive.lux
index 43637f7a2..b9aebc000 100644
--- a/stdlib/source/specification/compositor/generation/primitive.lux
+++ b/stdlib/source/specification/compositor/generation/primitive.lux
@@ -36,7 +36,7 @@
                     [expected <gen>]
                     (_.test (%.symbol (symbol <synthesis>))
                       (|> (run <evaluation_name> (<synthesis> expected))
-                          (pipe.case
+                          (pipe.when
                             {try.#Success actual}
                             (<test> expected (as_expected actual))