diff --git a/src/mainboard/asrock/b75pro3-m/devicetree.cb b/src/mainboard/asrock/b75pro3-m/devicetree.cb
index 93d37dc..0f7d0a8 100644
--- a/src/mainboard/asrock/b75pro3-m/devicetree.cb
+++ b/src/mainboard/asrock/b75pro3-m/devicetree.cb
@@ -38,7 +38,7 @@
 			register "gen2_dec" = "0x000c0241"
 			register "gen3_dec" = "0x000c0251"
 			register "pcie_hotplug_map" = "{ 0, 0, 0, 0, 0, 0, 0, 0 }"
-			register "pcie_port_coalesce" = "0"
+			register "pcie_port_coalesce" = "false"
 			register "sata_interface_speed_support" = "0x3"
 			register "sata_port_map" = "0x3f"
 			register "superspeed_capable_ports" = "0x0000000f"