diff --git a/zh_avr_ac_dimmer.c b/zh_avr_ac_dimmer.c
index 615297f..1078858 100644
--- a/zh_avr_ac_dimmer.c
+++ b/zh_avr_ac_dimmer.c
@@ -215,7 +215,7 @@ static avr_err_t _zh_avr_ac_dimmer_timer_init(void)
             _prescaler = (1 << CS01);
             break;
         case ZH_60HZ:
-            OCR0A = 206;
+            OCR0A = 207;
             _prescaler = (1 << CS01);
             break;
         case ZH_400HZ: