diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 63eebee80e754e7383319b8dc4a3d9ec37ec5e80..f79870e892666f75ca52bf09a66f0e3c4456634f 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -11,6 +11,7 @@
 #include <asm/gart.h>
 #include <asm/calgary.h>
 #include <asm/amd_iommu.h>
+#include <asm/x86_init.h>
 
 static int forbid_dac __read_mostly;