diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire
index 0d7c1ba8a..46bfb1bb3 100644
--- a/config/kernel/kernel.config.aarch64-ipfire
+++ b/config/kernel/kernel.config.aarch64-ipfire
@@ -7190,9 +7190,9 @@ CONFIG_IOMMU_IO_PGTABLE_LPAE=y
 # CONFIG_IOMMU_IO_PGTABLE_DART is not set
 # end of Generic IOMMU Pagetable Support
 
-# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
+CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
 # CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
-CONFIG_IOMMU_DEFAULT_PASSTHROUGH=y
+# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
 CONFIG_OF_IOMMU=y
 CONFIG_IOMMU_DMA=y
 CONFIG_ROCKCHIP_IOMMU=y