diff --git a/src/mainboard/lenovo/t400/blc.c b/src/mainboard/lenovo/t400/blc.c
index a88c09fa8c..38a1df2782 100644
--- a/src/mainboard/lenovo/t400/blc.c
+++ b/src/mainboard/lenovo/t400/blc.c
@@ -17,6 +17,10 @@
 #include <commonlib/helpers.h>
 #include <northbridge/intel/gm45/gm45.h>
 
+/*
+ * This contains a list of panel IDs and a known well working
+ * backlight PWM frequency.
+ */
 static const struct blc_pwm_t blc_entries[] = {
 	/* Vendor BIOS seems to intend to set PWM freq at 220Hz */
 	/* T400 */
@@ -32,6 +36,7 @@ static const struct blc_pwm_t blc_entries[] = {
 	{"LTN154P2-L05", 110},
 	{"LTN154P3-L02", 110},
 	{"LTN154X3-L02", 110},
+	{"LTN154U2-L05", 110},
 };
 
 int get_blc_values(const struct blc_pwm_t **entries)