diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb b/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb
index 7b47067..b5a10fc 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/devicetree.cb
@@ -21,15 +21,15 @@
 
 	device domain 0 on
 		subsystemid 0x1458 0x5000 inherit
-		device pci 00.0 on # Host bridge
+		device pci 00.0 on	# Host bridge
 			subsystemid 0x1458 0x5000
 		end
-		device pci 01.0 on end # PCIe Bridge for discrete graphics
-		device pci 02.0 on # Integrated VGA controller
+		device pci 01.0 on end	# PCIe Bridge for discrete graphics
+		device pci 02.0 on	# Integrated VGA controller
 			subsystemid 0x1458 0xd000
 		end
 
-		chip southbridge/intel/bd82x6x # Intel Series 7 Panther Point PCH
+		chip southbridge/intel/bd82x6x	# Intel Series 7 Panther Point PCH
 			# GPI routing
 			register "alt_gp_smi_en" = "0x0000"
 			register "gen1_dec" = "0x003c0a01"
@@ -45,41 +45,41 @@
 			register "docking_supported" = "0"
 			register "c2_latency" = "0x0065"
 
-			device pci 14.0 on # USB 3.0 Controller
+			device pci 14.0 on	# USB 3.0 Controller
 				subsystemid 0x1458 0x5007
 			end
-			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
-			device pci 19.0 off end # Intel Gigabit Ethernet
-			device pci 1a.0 on # USB2 EHCI #2
+			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
+			device pci 19.0 off end	# Intel Gigabit Ethernet
+			device pci 1a.0 on	# USB2 EHCI #2
 				subsystemid 0x1458 0x5006
 			end
-			device pci 1b.0 on # High Definition Audio
+			device pci 1b.0 on	# High Definition Audio
 				subsystemid 0x1458 0xa002
 			end
-			device pci 1c.0 on end # PCIe Port #1
-			device pci 1c.1 off end # PCIe Port #2
-			device pci 1c.2 off end # PCIe Port #3
-			device pci 1c.3 off end # PCIe Port #4
-			device pci 1c.4 on # PCIe Port #5
-				device pci 00.0 on # PCI 10ec:8168
+			device pci 1c.0 on  end	# PCIe Port #1
+			device pci 1c.1 off end	# PCIe Port #2
+			device pci 1c.2 off end	# PCIe Port #3
+			device pci 1c.3 off end	# PCIe Port #4
+			device pci 1c.4 on	# PCIe Port #5
+				device pci 00.0 on	# PCI 10ec:8168
 					subsystemid 0x1458 0xe000
 				end
 			end
-			device pci 1c.5 off end # PCIe Port #6
-			device pci 1c.6 off end # PCIe Port #7
-			device pci 1c.7 off end # PCIe Port #8
-			device pci 1d.0 on # USB2 EHCI #1
+			device pci 1c.5 off end	# PCIe Port #6
+			device pci 1c.6 off end	# PCIe Port #7
+			device pci 1c.7 off end	# PCIe Port #8
+			device pci 1d.0 on	# USB2 EHCI #1
 				subsystemid 0x1458 0x5006
 			end
 			device pci 1e.0 on end # PCI bridge
 			device pci 1f.0 on # ISA/LPC bridge
 				subsystemid 0x1458 0x5001
 				chip superio/ite/it8728f
-					device pnp 2e.0 off end # FDC
-					device pnp 2e.1 on # Serial Port 1
+					device pnp 2e.0 off end	# FDC
+					device pnp 2e.1 on	# Serial Port 1
 						io 0x60 = 0x3f8
 						irq 0x70 = 4
 					end
@@ -92,35 +92,35 @@
 						irq 0x70 = 7
 						drq 0x74 = 4
 					end
-					device pnp 2e.4 on # EC
+					device pnp 2e.4 on	# EC
 						io 0x60 = 0xa30
 						irq 0x70 = 9
 						io 0x62 = 0xa20
 					end
-					device pnp 2e.5 on # Keyboard
+					device pnp 2e.5 on	# Keyboard
 						io 0x60 = 0x60
 						irq 0x70 = 1
 						io 0x62 = 0x64
 					end
-					device pnp 2e.6 on # Mouse
+					device pnp 2e.6 on	# Mouse
 						irq 0x70 = 12
 					end
-					device pnp 2e.7 off end # GPIO
-					device pnp 2e.a off end # IR
+					device pnp 2e.7 off end	# GPIO
+					device pnp 2e.a off end	# IR
 				end
 
 				chip drivers/pc80/tpm
 					device pnp 0c31.0 on end
 				end
 			end
-			device pci 1f.2 on # SATA Controller 1
+			device pci 1f.2 on	# SATA Controller 1
 				subsystemid 0x1458 0xb005
 			end
-			device pci 1f.3 on # SMBus
+			device pci 1f.3 on	# SMBus
 				subsystemid 0x1458 0x5001
 			end
 			device pci 1f.4 off end
-			device pci 1f.5 off end # SATA Controller 2
+			device pci 1f.5 off end	# SATA Controller 2
 		end
 	end
 end