1 files changed, 1 insertions, 1 deletions

diff --git a/examples/stm32f4/src/bin/adc_dma.rs b/examples/stm32f4/src/bin/adc_dma.rs
index 65adb47e6..f8da91336 100644
--- a/examples/stm32f4/src/bin/adc_dma.rs
+++ b/examples/stm32f4/src/bin/adc_dma.rs
@@ -15,7 +15,7 @@ async fn main(spawner: Spawner) {
 }
 
 #[embassy_executor::task]
-async fn adc_task(mut p: Peripherals) {
+async fn adc_task(p: Peripherals) {
     const ADC_BUF_SIZE: usize = 1024;
     let adc_data: &mut [u16; ADC_BUF_SIZE] = singleton!(ADCDAT : [u16; ADC_BUF_SIZE] = [0u16; ADC_BUF_SIZE]).unwrap();
     let adc_data2: &mut [u16; ADC_BUF_SIZE] = singleton!(ADCDAT2 : [u16; ADC_BUF_SIZE] = [0u16; ADC_BUF_SIZE]).unwrap();