diff --git a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c
index 55120c317f7d..cd11734ef7c5 100644
--- a/arch/ppc/platforms/4xx/ebony.c
+++ b/arch/ppc/platforms/4xx/ebony.c
@@ -149,7 +149,7 @@ ebony_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
 static void __init
 ebony_setup_pcix(void)
 {
-	void *pcix_reg_base;
+	void __iomem *pcix_reg_base;
 
 	pcix_reg_base = ioremap64(PCIX0_REG_BASE, PCIX_REG_SIZE);