diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c
index 79354bbbbd6a..b995a15b7526 100644
--- a/drivers/misc/ioc4.c
+++ b/drivers/misc/ioc4.c
@@ -210,8 +210,8 @@ ioc4_clock_calibrate(struct ioc4_driver_data *idd)
 
 		do_div(ns, IOC4_EXTINT_COUNT_DIVISOR);
 		printk(KERN_DEBUG
-		       "IOC4 %s: PCI clock is %lld ns.\n",
-		       pci_name(idd->idd_pdev), ns);
+		       "IOC4 %s: PCI clock is %llu ns.\n",
+		       pci_name(idd->idd_pdev), (unsigned long long)ns);
 	}
 
 	/* Remember results.  We store the extint clock period rather