diff --git a/src/main/drivers/pwm_output_stm32f3xx.c b/src/main/drivers/pwm_output_stm32f3xx.c
index 7c76fdd15b..e72e03234c 100644
--- a/src/main/drivers/pwm_output_stm32f3xx.c
+++ b/src/main/drivers/pwm_output_stm32f3xx.c
@@ -84,7 +84,7 @@ void pwmCompleteDigitalMotorUpdate(uint8_t motorCount)
 {
     UNUSED(motorCount);
     
-    for (uint8_t i = 0; i < dmaMotorTimerCount; i++) {
+    for (int i = 0; i < dmaMotorTimerCount; i++) {
         TIM_SetCounter(dmaMotorTimers[i].timer, 0);
         TIM_DMACmd(dmaMotorTimers[i].timer, dmaMotorTimers[i].timerDmaSources, ENABLE); 
     }
diff --git a/src/main/drivers/pwm_output_stm32f4xx.c b/src/main/drivers/pwm_output_stm32f4xx.c
index ccf262aa41..d2bf798187 100644
--- a/src/main/drivers/pwm_output_stm32f4xx.c
+++ b/src/main/drivers/pwm_output_stm32f4xx.c
@@ -85,7 +85,7 @@ void pwmCompleteDigitalMotorUpdate(uint8_t motorCount)
 {
     UNUSED(motorCount);
     
-    for (uint8_t i = 0; i < dmaMotorTimerCount; i++) {
+    for (int i = 0; i < dmaMotorTimerCount; i++) {
         TIM_SetCounter(dmaMotorTimers[i].timer, 0);
         TIM_DMACmd(dmaMotorTimers[i].timer, dmaMotorTimers[i].timerDmaSources, ENABLE); 
     }