diff --git a/arch/mips/pci/pci-ar71xx.c b/arch/mips/pci/pci-ar71xx.c
index 1552522b8718bffb86762229ef5279b93094df16..6eaa4f2d0e38cb8c85e31734c7e090ec9a491cb3 100644
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -24,7 +24,7 @@
 #include <asm/mach-ath79/pci.h>
 
 #define AR71XX_PCI_MEM_BASE	0x10000000
-#define AR71XX_PCI_MEM_SIZE	0x08000000
+#define AR71XX_PCI_MEM_SIZE	0x07000000
 
 #define AR71XX_PCI_WIN0_OFFS		0x10000000
 #define AR71XX_PCI_WIN1_OFFS		0x11000000