1 files changed, 1 insertions, 1 deletions

diff --git a/examples/stm32l1/src/bin/usb_serial.rs b/examples/stm32l1/src/bin/usb_serial.rs
index 7b1e84cbc..f738ea358 100644
--- a/examples/stm32l1/src/bin/usb_serial.rs
+++ b/examples/stm32l1/src/bin/usb_serial.rs
@@ -27,7 +27,7 @@ async fn main(_spawner: Spawner) {
             mul: PllMul::MUL6, // PLLVCO = 16*6 = 96Mhz
             div: PllDiv::DIV3, // 32Mhz clock (16 * 6 / 3)
         });
-        config.rcc.mux = ClockSrc::PLL1_R;
+        config.rcc.sys = Sysclk::PLL1_R;
     }
 
     let p = embassy_stm32::init(config);