1 files changed, 1 insertions, 0 deletions

diff --git a/examples/stm32h7rs/src/bin/usb_serial.rs b/examples/stm32h7rs/src/bin/usb_serial.rs
index 5a234e898..6773f7843 100644
--- a/examples/stm32h7rs/src/bin/usb_serial.rs
+++ b/examples/stm32h7rs/src/bin/usb_serial.rs
@@ -48,6 +48,7 @@ async fn main(_spawner: Spawner) {
         config.rcc.apb4_pre = APBPrescaler::DIV2; // 150 MHz
         config.rcc.apb5_pre = APBPrescaler::DIV2; // 150 MHz
         config.rcc.voltage_scale = VoltageScale::HIGH;
+        config.rcc.mux.usbphycsel = mux::Usbphycsel::HSE;
     }
 
     let p = embassy_stm32::init(config);