diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 5113c080f0c4..d7a7c4c063ff 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -23,9 +23,7 @@
 #include <linux/debugfs.h>
 #include <linux/scatterlist.h>
 #include <linux/iommu-helper.h>
-#ifdef CONFIG_IOMMU_API
 #include <linux/iommu.h>
-#endif
 #include <asm/proto.h>
 #include <asm/iommu.h>
 #include <asm/gart.h>