diff --git a/common/lightbar.c b/common/lightbar.c
index 86600d4d5e..f67e7f174c 100644
--- a/common/lightbar.c
+++ b/common/lightbar.c
@@ -282,7 +282,7 @@ void demo_tap(void)
 /******************************************************************************/
 
 #define F(x) (x * FP_SCALE)
-static const int _ramp_table[] = {
+static const uint16_t _ramp_table[] = {
 	F(0.000000), F(0.002408), F(0.009607), F(0.021530), F(0.038060),
 	F(0.059039), F(0.084265), F(0.113495), F(0.146447), F(0.182803),
 	F(0.222215), F(0.264302), F(0.308658), F(0.354858), F(0.402455),