diff --git a/embassy-stm32/src/flash/common.rs b/embassy-stm32/src/flash/common.rs
index 7cec5a3c..e1fe7e9d 100644
--- a/embassy-stm32/src/flash/common.rs
+++ b/embassy-stm32/src/flash/common.rs
@@ -8,8 +8,7 @@ use embassy_sync::mutex::Mutex;
 use stm32_metapac::FLASH_BASE;
 
 use super::{
-    family, Error, FlashLayout, FlashRegion, FLASH_SIZE, MAX_ERASE_SIZE, READ_SIZE,
-    WRITE_SIZE, FlashSector, FlashBank,
+    family, Error, FlashBank, FlashLayout, FlashRegion, FlashSector, FLASH_SIZE, MAX_ERASE_SIZE, READ_SIZE, WRITE_SIZE,
 };
 use crate::peripherals::FLASH;
 use crate::Peripheral;
@@ -162,7 +161,6 @@ pub(crate) fn ensure_sector_aligned(
     Ok(())
 }
 
-
 impl embedded_storage::nor_flash::ErrorType for Flash<'_> {
     type Error = Error;
 }
diff --git a/embassy-stm32/src/flash/f4.rs b/embassy-stm32/src/flash/f4.rs
index 0c008fd0..084bbdc6 100644
--- a/embassy-stm32/src/flash/f4.rs
+++ b/embassy-stm32/src/flash/f4.rs
@@ -2,26 +2,26 @@ use core::convert::TryInto;
 use core::ptr::write_volatile;
 use core::sync::atomic::{fence, Ordering};
 
+#[cfg(feature = "nightly")]
+use embassy_sync::waitqueue::AtomicWaker;
+
 use super::{FlashRegion, FlashSector, FLASH_REGIONS, WRITE_SIZE};
 use crate::flash::Error;
 use crate::pac;
 
-#[cfg(feature = "nightly")]
-use embassy_sync::waitqueue::AtomicWaker;
-
 #[cfg(any(stm32f427, stm32f429, stm32f437, stm32f439, stm32f469, stm32f479))]
 mod alt_regions {
     use embassy_hal_common::PeripheralRef;
     use stm32_metapac::FLASH_SIZE;
 
     use crate::_generated::flash_regions::{OTPRegion, BANK1_REGION1, BANK1_REGION2, BANK1_REGION3, OTP_REGION};
-    use crate::flash::{
-        common, Bank1Region1, Bank1Region2, BlockingFlashRegion, Error, Flash, FlashBank, FlashRegion,
-        READ_SIZE, REGION_ACCESS,
-    };
-    use crate::peripherals::FLASH;
     #[cfg(feature = "nightly")]
     use crate::flash::asynch;
+    use crate::flash::{
+        common, Bank1Region1, Bank1Region2, BlockingFlashRegion, Error, Flash, FlashBank, FlashRegion, READ_SIZE,
+        REGION_ACCESS,
+    };
+    use crate::peripherals::FLASH;
 
     pub const ALT_BANK1_REGION3: FlashRegion = FlashRegion {
         size: 3 * BANK1_REGION3.erase_size,