diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index ef573c1d71a796664d4afe1ebe4280d70b476657..d73cc6b60000044e48aa5253eeea2707d5d5ffba 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -20,8 +20,6 @@
 
 struct task_struct;
 
-extern int sysctl_userprocess_debug;
-
 extern struct task_struct *__switch_to(void *, void *);
 extern void update_per_regs(struct task_struct *task);