diff --git a/compiler/rustc_builtin_macros/src/asm.rs b/compiler/rustc_builtin_macros/src/asm.rs
index 418567619169f..1a93b9be99ead 100644
--- a/compiler/rustc_builtin_macros/src/asm.rs
+++ b/compiler/rustc_builtin_macros/src/asm.rs
@@ -809,7 +809,7 @@ fn expand_preparsed_asm(ecx: &mut ExtCtxt<'_>, args: AsmArgs) -> Option<ast::Inl
     })
 }
 
-pub fn expand_asm<'cx>(
+pub(super) fn expand_asm<'cx>(
     ecx: &'cx mut ExtCtxt<'_>,
     sp: Span,
     tts: TokenStream,
@@ -836,7 +836,7 @@ pub fn expand_asm<'cx>(
     }
 }
 
-pub fn expand_global_asm<'cx>(
+pub(super) fn expand_global_asm<'cx>(
     ecx: &'cx mut ExtCtxt<'_>,
     sp: Span,
     tts: TokenStream,
diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs
index 3e8b43fea8a50..8c3ef2864f485 100644
--- a/compiler/rustc_builtin_macros/src/lib.rs
+++ b/compiler/rustc_builtin_macros/src/lib.rs
@@ -19,7 +19,6 @@ use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};
 use rustc_expand::proc_macro::BangProcMacro;
 use rustc_span::symbol::sym;
 
-mod asm;
 mod assert;
 mod cfg;
 mod cfg_accessible;
@@ -42,6 +41,7 @@ mod test;
 mod trace_macros;
 mod util;
 
+pub mod asm;
 pub mod cmdline_attrs;
 pub mod proc_macro_harness;
 pub mod standard_library_imports;