diff --git a/include/linux/irq.h b/include/linux/irq.h
index c13f23d..1022c5d 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -61,6 +61,8 @@
 
 typedef struct hw_interrupt_type  hw_irq_controller;
 
+struct proc_dir_entry;
+
 /*
  * This is the "IRQ descriptor", which contains various information
  * about the irq, including what kind of hardware handling it has,
@@ -83,6 +85,9 @@
 #if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
 	unsigned int		move_irq;	/* need to re-target IRQ dest */
 #endif
+#ifdef CONFIG_PROC_FS
+	struct proc_dir_entry *dir;
+#endif
 } ____cacheline_aligned;
 
 extern struct irq_desc irq_desc[NR_IRQS];