diff --git a/quic/s2n-quic-core/events/common.rs b/quic/s2n-quic-core/events/common.rs
index ddcef360b..7f1c17309 100644
--- a/quic/s2n-quic-core/events/common.rs
+++ b/quic/s2n-quic-core/events/common.rs
@@ -592,7 +592,8 @@ struct ConnectionCloseFrame<'a> {
 impl<'a> ConnectionCloseFrame<'a> {
     /// Converts the reason to a UTF-8 `str`, including invalid characters
     pub fn reason_lossy_utf8(&self) -> Option<alloc::borrow::Cow<'a, str>> {
-        self.reason.map(|reason| String::from_utf8_lossy(reason))
+        self.reason
+            .map(|reason| alloc::string::String::from_utf8_lossy(reason))
     }
 }
 
diff --git a/quic/s2n-quic-core/src/event/generated.rs b/quic/s2n-quic-core/src/event/generated.rs
index 9d0dd84e2..bc0d15f37 100644
--- a/quic/s2n-quic-core/src/event/generated.rs
+++ b/quic/s2n-quic-core/src/event/generated.rs
@@ -3398,7 +3398,8 @@ pub mod api {
     impl<'a> ConnectionCloseFrame<'a> {
         #[doc = " Converts the reason to a UTF-8 `str`, including invalid characters"]
         pub fn reason_lossy_utf8(&self) -> Option<alloc::borrow::Cow<'a, str>> {
-            self.reason.map(|reason| String::from_utf8_lossy(reason))
+            self.reason
+                .map(|reason| alloc::string::String::from_utf8_lossy(reason))
         }
     }
     impl<'a> IntoEvent<builder::ConnectionCloseFrame<'a>> for &crate::frame::ConnectionClose<'a> {