diff --git a/embassy-stm32f4-examples/src/serial.rs b/embassy-stm32f4-examples/src/serial.rs
index 6c757dd2f..baed2e525 100644
--- a/embassy-stm32f4-examples/src/serial.rs
+++ b/embassy-stm32f4-examples/src/serial.rs
@@ -30,8 +30,8 @@ async fn run(dp: stm32::Peripherals, cp: cortex_m::Peripherals) {
     let mut serial = serial::Serial::new(
         gpioa.pa9.into_alternate_af7(),
         gpioa.pa10.into_alternate_af7(),
-        interrupt::take!(DMA2_STREAM2),
         interrupt::take!(DMA2_STREAM7),
+        interrupt::take!(DMA2_STREAM2),
         interrupt::take!(USART1),
         dp.DMA2,
         dp.USART1,
diff --git a/embassy-stm32f4/src/interrupt.rs b/embassy-stm32f4/src/interrupt.rs
index 6cc90f66d..64f0a6467 100644
--- a/embassy-stm32f4/src/interrupt.rs
+++ b/embassy-stm32f4/src/interrupt.rs
@@ -32,7 +32,7 @@ pub enum Priority {
     Level12 = 12,
     Level13 = 13,
     Level14 = 14,
-    Level14 = 15,
+    Level15 = 15,
 }
 
 impl From<u8> for Priority {