diff --git a/src/drivers/drivers.mak b/src/drivers/drivers.mak
index aeb7924d2..c0c2c3358 100644
--- a/src/drivers/drivers.mak
+++ b/src/drivers/drivers.mak
@@ -1,3 +1,15 @@
+##### CLEAR VARS
+
+DRV_CFLAGS =
+DRV_WPA_CFLAGS =
+DRV_AP_CFLAGS =
+DRV_OBJS =
+DRV_WPA_OBJS =
+DRV_AP_OBJS =
+DRV_LIBS =
+DRV_WPA_LIBS =
+DRV_AP_LIBS =
+
 ##### COMMON DRIVERS
 
 ifdef CONFIG_DRIVER_HOSTAP