diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 07f3656d086b8..b8c0275ea576d 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -1703,6 +1703,7 @@ impl Ident {
     /// macro (e.g., `macro` or `macro_rules!` items) and stay different if they came from different
     /// non-transparent macros.
     /// Technically, this operation strips all transparent marks from ident's syntactic context.
+    #[inline]
     pub fn normalize_to_macro_rules(self) -> Ident {
         Ident::new(self.name, self.span.normalize_to_macro_rules())
     }
@@ -1718,6 +1719,7 @@ impl Ident {
 }
 
 impl PartialEq for Ident {
+    #[inline]
     fn eq(&self, rhs: &Self) -> bool {
         self.name == rhs.name && self.span.eq_ctxt(rhs.span)
     }