diff --git a/library/core/src/fmt/rt/v1.rs b/library/core/src/fmt/rt/v1.rs
index e61b89fad5d..11a50951a75 100644
--- a/library/core/src/fmt/rt/v1.rs
+++ b/library/core/src/fmt/rt/v1.rs
@@ -23,7 +23,8 @@ pub struct FormatSpec {
 }
 
 impl Argument {
-    pub fn new(
+    #[inline(always)]
+    pub const fn new(
         position: usize,
         fill: char,
         align: Alignment,