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Diffstat (limited to 'crates/proc-macro-api/src/lib.rs')
-rw-r--r--crates/proc-macro-api/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/crates/proc-macro-api/src/lib.rs b/crates/proc-macro-api/src/lib.rs
index 345608d3d0..379d184dd6 100644
--- a/crates/proc-macro-api/src/lib.rs
+++ b/crates/proc-macro-api/src/lib.rs
@@ -184,7 +184,7 @@ impl ProcMacro {
.process
.lock()
.unwrap_or_else(|e| e.into_inner())
- .send_task(msg::Request::ExpandMacro(task))?;
+ .send_task(msg::Request::ExpandMacro(Box::new(task)))?;
match response {
msg::Response::ExpandMacro(it) => {