diff --git a/boards/librem13v2/librem13v2.config b/boards/librem13v2/librem13v2.config
index 5d5db1cb..eca00583 100644
--- a/boards/librem13v2/librem13v2.config
+++ b/boards/librem13v2/librem13v2.config
@@ -28,7 +28,7 @@ export CONFIG_TPM=y
 export CONFIG_BOOTSCRIPT=/bin/gui-init
 export CONFIG_BOOT_REQ_HASH=n
 export CONFIG_BOOT_REQ_ROLLBACK=n
-export CONFIG_BOOT_KERNEL_ADD="iommu=pt"
+export CONFIG_BOOT_KERNEL_ADD="intel_iommu=on"
 export CONFIG_BOOT_KERNEL_REMOVE=""
 export CONFIG_BOOT_DEV="/dev/sda1"
 export CONFIG_BOOT_GUI_MENU_NAME="Purism Librem 13v2 Heads Boot Menu"
diff --git a/boards/librem13v4/librem13v4.config b/boards/librem13v4/librem13v4.config
index 56db420a..12fe0488 100644
--- a/boards/librem13v4/librem13v4.config
+++ b/boards/librem13v4/librem13v4.config
@@ -28,7 +28,7 @@ export CONFIG_TPM=y
 export CONFIG_BOOTSCRIPT=/bin/gui-init
 export CONFIG_BOOT_REQ_HASH=n
 export CONFIG_BOOT_REQ_ROLLBACK=n
-export CONFIG_BOOT_KERNEL_ADD="iommu=pt"
+export CONFIG_BOOT_KERNEL_ADD="intel_iommu=on"
 export CONFIG_BOOT_KERNEL_REMOVE=""
 export CONFIG_BOOT_DEV="/dev/sda1"
 export CONFIG_BOOT_GUI_MENU_NAME="Purism Librem 13v2 Heads Boot Menu"
diff --git a/boards/librem15v3/librem15v3.config b/boards/librem15v3/librem15v3.config
index 8cb378e3..ee99c0cd 100644
--- a/boards/librem15v3/librem15v3.config
+++ b/boards/librem15v3/librem15v3.config
@@ -30,7 +30,7 @@ export CONFIG_TPM=y
 export CONFIG_BOOTSCRIPT=/bin/gui-init
 export CONFIG_BOOT_REQ_HASH=n
 export CONFIG_BOOT_REQ_ROLLBACK=n
-export CONFIG_BOOT_KERNEL_ADD="iommu=pt"
+export CONFIG_BOOT_KERNEL_ADD="intel_iommu=on"
 export CONFIG_BOOT_KERNEL_REMOVE=""
 export CONFIG_BOOT_DEV="/dev/sda1"
 export CONFIG_BOOT_GUI_MENU_NAME="Purism Librem 15v3 Heads Boot Menu"
diff --git a/boards/librem15v4/librem15v4.config b/boards/librem15v4/librem15v4.config
index 7e29826c..38041122 100644
--- a/boards/librem15v4/librem15v4.config
+++ b/boards/librem15v4/librem15v4.config
@@ -30,7 +30,7 @@ export CONFIG_TPM=y
 export CONFIG_BOOTSCRIPT=/bin/gui-init
 export CONFIG_BOOT_REQ_HASH=n
 export CONFIG_BOOT_REQ_ROLLBACK=n
-export CONFIG_BOOT_KERNEL_ADD="iommu=pt"
+export CONFIG_BOOT_KERNEL_ADD="intel_iommu=on"
 export CONFIG_BOOT_KERNEL_REMOVE=""
 export CONFIG_BOOT_DEV="/dev/sda1"
 export CONFIG_BOOT_GUI_MENU_NAME="Purism Librem 15v4 Heads Boot Menu"