diff --git a/radio/src/targets/horus/backlight_driver.cpp b/radio/src/targets/horus/backlight_driver.cpp
index a792b6c6c..26345efc8 100644
--- a/radio/src/targets/horus/backlight_driver.cpp
+++ b/radio/src/targets/horus/backlight_driver.cpp
@@ -55,7 +55,7 @@ void backlightInit()
   }
   else {
     BETA_BL_TIMER->ARR = 100;
-    BETA_BL_TIMER->PSC = BETA_BL_TIMER_FREQ / 50000 - 1; // 20us * 100 = 2ms => 500Hz
+    BETA_BL_TIMER->PSC = BETA_BL_TIMER_FREQ / 10000 - 1; // 1kHz
     BETA_BL_TIMER->CCMR1 = TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2; // PWM
     BETA_BL_TIMER->CCER = TIM_CCER_CC1E | TIM_CCER_CC1NE;
     BETA_BL_TIMER->CCR1 = 100;