diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h
index 117adb1..a6ab663 100644
--- a/arch/m68k/include/asm/ptrace.h
+++ b/arch/m68k/include/asm/ptrace.h
@@ -90,11 +90,11 @@
  */
 struct task_struct;
 
-#ifdef CONFIG_MMU
 #define arch_has_single_step()	(1)
 extern void user_enable_single_step(struct task_struct *);
 extern void user_disable_single_step(struct task_struct *);
 
+#ifdef CONFIG_MMU
 #define arch_has_block_step()	(1)
 extern void user_enable_block_step(struct task_struct *);
 #endif