diff --git a/reactos/drivers/bus/acpi/.cvsignore b/reactos/drivers/bus/acpi/.cvsignore
index 0f1d88fb836..ffd46cd843f 100644
--- a/reactos/drivers/bus/acpi/.cvsignore
+++ b/reactos/drivers/bus/acpi/.cvsignore
@@ -5,3 +5,4 @@ objects
 *.sym
 *.sys
 *.map
+*.tmp