diff --git a/src/utils/async.rs b/src/utils/async.rs
index d4bb3878..f0f5c0b7 100644
--- a/src/utils/async.rs
+++ b/src/utils/async.rs
@@ -482,7 +482,7 @@ pub struct AsyncProj<'a, 'stream, T: 'a> {
 }
 
 #[cfg(feature = "host")]
-unsafe impl<#[may_dangle] 'a, 'stream, T: 'a> Drop for AsyncProj<'a, 'stream, T> {
+unsafe impl<#[may_dangle] 'a, 'stream, #[may_dangle] T: 'a> Drop for AsyncProj<'a, 'stream, T> {
     fn drop(&mut self) {
         // no-op
     }