diff --git a/test/dm/regulator.c b/test/dm/regulator.c
index 3d0056f..395381d 100644
--- a/test/dm/regulator.c
+++ b/test/dm/regulator.c
@@ -27,6 +27,7 @@
 enum {
 	BUCK1,
 	BUCK2,
+	BUCK3,
 	LDO1,
 	LDO2,
 	OUTPUT_COUNT,
@@ -42,6 +43,7 @@
 	/* devname, platname */
 	{ SANDBOX_BUCK1_DEVNAME, SANDBOX_BUCK1_PLATNAME },
 	{ SANDBOX_BUCK2_DEVNAME, SANDBOX_BUCK2_PLATNAME },
+	{ SANDBOX_BUCK3_DEVNAME, SANDBOX_BUCK3_PLATNAME },
 	{ SANDBOX_LDO1_DEVNAME, SANDBOX_LDO1_PLATNAME},
 	{ SANDBOX_LDO2_DEVNAME, SANDBOX_LDO2_PLATNAME},
 };