diff --git a/pygoscelis-config b/pygoscelis-config
index 512de1e..9a21642 100644
--- a/pygoscelis-config
+++ b/pygoscelis-config
@@ -4557,8 +4557,8 @@ CONFIG_IOMMU_SUPPORT=y
 CONFIG_IOMMU_IO_PGTABLE=y
 # end of Generic IOMMU Pagetable Support
 
-# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
-CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
+CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
+# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
 # CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
 CONFIG_IOMMU_DMA=y
 CONFIG_AMD_IOMMU=y