diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h
index 498c9a768506..ac98e49e44fe 100644
--- a/include/linux/iommufd.h
+++ b/include/linux/iommufd.h
@@ -101,7 +101,7 @@ struct iommufd_viommu {
 	struct list_head veventqs;
 	struct rw_semaphore veventqs_rwsem;
 
-	unsigned int type;
+	enum iommu_viommu_type type;
 };
 
 /**