diff --git a/src/stm32f1/adc.c b/src/stm32f1/adc.c
index 2fe4977e..8eda4f8f 100644
--- a/src/stm32f1/adc.c
+++ b/src/stm32f1/adc.c
@@ -75,7 +75,8 @@ gpio_adc_sample(struct gpio_adc g)
     /* ADC not busy, start conversion */
     if (!readb(&adc_busy)) {
         LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_1, g.bit);
-        LL_ADC_SetChannelSamplingTime(ADC1, g.bit, LL_ADC_SAMPLINGTIME_239CYCLES_5);
+        LL_ADC_SetChannelSamplingTime(ADC1, g.bit
+                                      , LL_ADC_SAMPLINGTIME_239CYCLES_5);
         LL_ADC_REG_StartConversionSWStart(ADC1);
         adc_busy = true;
         adc_current_channel = g.bit;
diff --git a/src/stm32f1/serial.c b/src/stm32f1/serial.c
index cfc5d04d..e1699334 100644
--- a/src/stm32f1/serial.c
+++ b/src/stm32f1/serial.c
@@ -17,7 +17,8 @@
 void
 serial_init(void)
 {
-    const uint32_t pclk = __LL_RCC_CALC_PCLK2_FREQ(SystemCoreClock, LL_RCC_GetAPB2Prescaler());
+    const uint32_t pclk = __LL_RCC_CALC_PCLK2_FREQ(SystemCoreClock
+                                                   , LL_RCC_GetAPB2Prescaler());
 
     LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_USART1);
     LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_USART1);
diff --git a/src/stm32f1/spi.c b/src/stm32f1/spi.c
index 5ce81fb9..5b9ffda2 100644
--- a/src/stm32f1/spi.c
+++ b/src/stm32f1/spi.c
@@ -35,7 +35,8 @@ static void spi_set_mode(SPI_TypeDef *spi, uint8_t mode)
 
 static void spi_set_baudrate(SPI_TypeDef *spi, uint32_t rate)
 {
-    const uint32_t pclk = __LL_RCC_CALC_PCLK1_FREQ(SystemCoreClock, LL_RCC_GetAPB1Prescaler());
+    const uint32_t pclk = __LL_RCC_CALC_PCLK1_FREQ(SystemCoreClock
+                                                   , LL_RCC_GetAPB1Prescaler());
     const uint32_t prescaler = pclk / rate;
 
     uint32_t setting = LL_SPI_BAUDRATEPRESCALER_DIV256;