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-rw-r--r--tests/ui/coroutine/too-many-parameters.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/ui/coroutine/too-many-parameters.rs b/tests/ui/coroutine/too-many-parameters.rs
index 377d80c7b22..3baaf062347 100644
--- a/tests/ui/coroutine/too-many-parameters.rs
+++ b/tests/ui/coroutine/too-many-parameters.rs
@@ -1,6 +1,7 @@
 #![feature(coroutines)]
 
 fn main() {
+    #[coroutine]
     |(), ()| {
         //~^ error: too many parameters for a coroutine
         yield;