diff --git a/arch/um/include/shared/skas/skas.h b/arch/um/include/shared/skas/skas.h
index ebaa116de30b..854cff8d6319 100644
--- a/arch/um/include/shared/skas/skas.h
+++ b/arch/um/include/shared/skas/skas.h
@@ -13,7 +13,6 @@ extern int userspace_pid[];
 extern int user_thread(unsigned long stack, int flags);
 extern void new_thread_handler(void);
 extern void handle_syscall(struct uml_pt_regs *regs);
-extern long execute_syscall_skas(void *r);
 extern unsigned long current_stub_stack(void);
 extern struct mm_id *current_mm_id(void);
 extern void current_mm_sync(void);