diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 88cad7db1bf2..b463b2ab0580 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1090,6 +1090,7 @@ struct iommu_domain *iommu_group_default_domain(struct iommu_group *group)
 {
 	return group->default_domain;
 }
+EXPORT_SYMBOL_GPL(iommu_group_default_domain);
 
 static int add_iommu_group(struct device *dev, void *data)
 {