diff --git a/arch/um/kernel/skas/stub_exe.c b/arch/um/kernel/skas/stub_exe.c
index 04f75c577f1a..722ce6267476 100644
--- a/arch/um/kernel/skas/stub_exe.c
+++ b/arch/um/kernel/skas/stub_exe.c
@@ -79,7 +79,7 @@ noinline static void real_init(void)
 	__builtin_unreachable();
 }
 
-void _start(void)
+__attribute__((naked)) void _start(void)
 {
 	char *alloc;