diff --git a/timer-stm32.c b/timer-stm32.c
index 675c39c..0f1cc27 100644
--- a/timer-stm32.c
+++ b/timer-stm32.c
@@ -74,9 +74,8 @@ void timer_init() {
   */
   RCC->APB1ENR |= RCC_APB1ENR_TIM5EN;             // Turn on TIM5 power.
 
-  TIM5->CCR1          = 0xFFFFFFFF;               // First timer should not occur at 0
-  TIM5->CR1          &= ~(0x03FF);                // clear register
-  TIM5->CR1          |= TIM_CR1_CEN;              // Enable counter.
+  TIM5->SR            = 0;                        // clear status register
+  TIM5->CR1           = TIM_CR1_CEN;              // Enable counter.
 
   NVIC_SetPriority(TIM5_IRQn,
   NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));           // Also highest priority.