diff --git a/library/alloc/src/collections/mod.rs b/library/alloc/src/collections/mod.rs
index 3ee857f3399..0d442011921 100644
--- a/library/alloc/src/collections/mod.rs
+++ b/library/alloc/src/collections/mod.rs
@@ -111,6 +111,7 @@ pub enum TryReserveErrorKind {
     issue = "48043"
 )]
 impl From<TryReserveErrorKind> for TryReserveError {
+    #[inline]
     fn from(kind: TryReserveErrorKind) -> Self {
         Self { kind }
     }