diff --git a/src/mainboard/lenovo/t420/devicetree.cb b/src/mainboard/lenovo/t420/devicetree.cb
index e42e519f87..457ccbee1b 100644
--- a/src/mainboard/lenovo/t420/devicetree.cb
+++ b/src/mainboard/lenovo/t420/devicetree.cb
@@ -61,7 +61,7 @@ chip northbridge/intel/sandybridge
 			register "spi_uvscc" = "0x2005"
 			register "spi_lvscc" = "0x2005"
 
-			device pci 16.0 off end # Management Engine Interface 1
+			device pci 16.0 on  end # Management Engine Interface 1
 			device pci 16.1 off end # Management Engine Interface 2
 			device pci 16.2 off end # Management Engine IDE-R
 			device pci 16.3 off end # Management Engine KT
diff --git a/src/mainboard/lenovo/t420s/devicetree.cb b/src/mainboard/lenovo/t420s/devicetree.cb
index ab98ca0bd0..32736a83f2 100644
--- a/src/mainboard/lenovo/t420s/devicetree.cb
+++ b/src/mainboard/lenovo/t420s/devicetree.cb
@@ -63,7 +63,7 @@ chip northbridge/intel/sandybridge
 			register "spi_uvscc" = "0x2005"
 			register "spi_lvscc" = "0x2005"
 
-			device pci 16.0 off end # Management Engine Interface 1
+			device pci 16.0 on  end # Management Engine Interface 1
 			device pci 16.1 off end # Management Engine Interface 2
 			device pci 16.2 off end # Management Engine IDE-R
 			device pci 16.3 off end # Management Engine KT
diff --git a/src/mainboard/lenovo/x220/devicetree.cb b/src/mainboard/lenovo/x220/devicetree.cb
index 53eb23a1bd..b239d64dae 100644
--- a/src/mainboard/lenovo/x220/devicetree.cb
+++ b/src/mainboard/lenovo/x220/devicetree.cb
@@ -60,7 +60,7 @@ chip northbridge/intel/sandybridge
 			register "spi_uvscc" = "0x2005"
 			register "spi_lvscc" = "0x2005"
 
-			device pci 16.0 off end # Management Engine Interface 1
+			device pci 16.0 on  end # Management Engine Interface 1
 			device pci 16.1 off end # Management Engine Interface 2
 			device pci 16.2 off end # Management Engine IDE-R
 			device pci 16.3 off end # Management Engine KT