diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 5922edd416dbc2b049063d58248fc75132a25fb8..9c6424892bd37fcca32ae16e02e8691198c6c788 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -131,6 +131,8 @@ void user_enable_single_step(struct task_struct *child)
 
 void user_disable_single_step(struct task_struct *child)
 {
+	struct pt_regs *regs = child->thread.uregs;
+
 	regs->sr &= ~SR_SSTEP;
 }