diff --git a/src/mainboard/google/falco/devicetree.cb b/src/mainboard/google/falco/devicetree.cb
index 4e75c92948..3823ce7d92 100644
--- a/src/mainboard/google/falco/devicetree.cb
+++ b/src/mainboard/google/falco/devicetree.cb
@@ -74,6 +74,9 @@ chip northbridge/intel/haswell
 			register "sio_i2c0_voltage" = "0" # 3.3V
 			register "sio_i2c1_voltage" = "0" # 3.3V
 
+			# Disable PCIe CLKOUT 1-5 and CLKOUT_XDP
+			register "icc_clock_disable" = "0x013e0000"
+
 			device pci 13.0 off end # Smart Sound Audio DSP
 			device pci 14.0 on end # USB3 XHCI
 			device pci 15.0 on end # Serial I/O DMA