diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl
index e2b55ff88d..35e0e0013f 100644
--- a/src/ec/google/chromeec/acpi/ec.asl
+++ b/src/ec/google/chromeec/acpi/ec.asl
@@ -201,7 +201,7 @@ Device (EC0)
 		Local0 += \_SB.PCI0.LPCB.EC0.TOFS
 
 		/* Convert to 1/10 Kelvin */
-		Multiply (Local0, 10, Local0)
+		Local0 *= 10
 
 		Return (Local0)
 	}