diff --git a/src/mainboard/google/octopus/variants/phaser/overridetree.cb b/src/mainboard/google/octopus/variants/phaser/overridetree.cb
index 625c2a6a34..b80d0317c8 100644
--- a/src/mainboard/google/octopus/variants/phaser/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/phaser/overridetree.cb
@@ -173,4 +173,7 @@ chip soc/intel/apollolake
                        end
 		end	# - I2C 7
 	end
+
+	# Disable xHCI compliance mode
+	register "DisableComplianceMode" = "1"
 end