diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 144c77dfe4b1..eb9137faccf7 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -889,6 +889,7 @@ int iosapic_serial_irq(struct parisc_device *dev)
 
 	return vi->txn_irq;
 }
+EXPORT_SYMBOL(iosapic_serial_irq);
 #endif