diff --git a/src/main.c b/src/main.c
index c7d2b58..4686c2d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -731,7 +731,7 @@ int main(void)
 
 					timer_set_oc_value(TIM1, TIM_CH_CONV, pwm);
 
-					if((mpp_state.mppMaxPWM < CONV_PWM_MAX) && (mpp_state.mppMaxPWM > CONV_PWM_MAX/10) &&
+					if((mpp_state.mppMaxPWM < CONV_PWM_MAX) &&
 							time_in_state > 5000 && ((time_in_state % 3000) == 10)) {
 						mpp_state.mppMaxPWM++;
 					}
@@ -740,7 +740,10 @@ int main(void)
 						operState = Bootstrap;
 						nextState = ConvMPP;
 						mpp_state.testIdx = -1;
-						mpp_state.mppMaxPWM -= 10;
+
+						if(mpp_state.mppMaxPWM > CONV_PWM_MAX/10) {
+							mpp_state.mppMaxPWM -= 10;
+						}
 					}
 
 					if(power_state.vout_avg > MAX_VOLTAGE) {