diff --git a/os/hal/ports/STM32/LLD/TIMv1/gpt_lld.c b/os/hal/ports/STM32/LLD/TIMv1/gpt_lld.c
index 0f48faec9..127e9119f 100644
--- a/os/hal/ports/STM32/LLD/TIMv1/gpt_lld.c
+++ b/os/hal/ports/STM32/LLD/TIMv1/gpt_lld.c
@@ -863,6 +863,7 @@ void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval) {
 
   gptp->tim->ARR  = (uint32_t)(interval - 1);   /* Time constant.           */
   gptp->tim->EGR  = STM32_TIM_EGR_UG;           /* Update event.            */
+  gptp->tim->SR   = 0;                          /* Clear pending IRQs.      */
   gptp->tim->CR1  = STM32_TIM_CR1_OPM | STM32_TIM_CR1_URS | STM32_TIM_CR1_CEN;
   while (!(gptp->tim->SR & STM32_TIM_SR_UIF))
     ;
diff --git a/readme.txt b/readme.txt
index 37cf4df7b..a6dfbc2a0 100644
--- a/readme.txt
+++ b/readme.txt
@@ -73,6 +73,7 @@
 *****************************************************************************
 
 *** 16.1.6 ***
+- HAL: Fixed function gpt_lld_polled_delay() is broken on STM32 (bug #775).
 - HAL: Fixed invalid output initialization for STM32 DACx channels 2
        (bug #773).
 - HAL: Fixed CAN inclusion path missing for STM32F107 (bug #772).