diff --git a/compiler/rustc_codegen_gcc/src/asm.rs b/compiler/rustc_codegen_gcc/src/asm.rs
index 7c135289958fe..bd13d585949c9 100644
--- a/compiler/rustc_codegen_gcc/src/asm.rs
+++ b/compiler/rustc_codegen_gcc/src/asm.rs
@@ -845,6 +845,13 @@ impl<'gcc, 'tcx> AsmMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         template_str.push_str("\n.popsection");
         self.context.add_top_level_asm(None, &template_str);
     }
+
+    fn mangled_name(&self, instance: Instance<'tcx>) -> String {
+        // TODO(@Amanieu): Additional mangling is needed on
+        // some targets to add a leading underscore (Mach-O)
+        // or byte count suffixes (x86 Windows).
+        self.tcx.symbol_name(instance).name.to_string()
+    }
 }
 
 fn modifier_to_gcc(