diff --git a/embassy-stm32/build.rs b/embassy-stm32/build.rs
index 38b6c480c..0f87dd8ac 100644
--- a/embassy-stm32/build.rs
+++ b/embassy-stm32/build.rs
@@ -272,8 +272,6 @@ fn main() {
                 "Bank1"
             } else if region.name.starts_with("BANK_2") {
                 "Bank2"
-            } else if region.name == "OTP" {
-                "Otp"
             } else {
                 continue;
             }
diff --git a/embassy-stm32/src/flash/f4.rs b/embassy-stm32/src/flash/f4.rs
index 00e61f2d2..90f13ff29 100644
--- a/embassy-stm32/src/flash/f4.rs
+++ b/embassy-stm32/src/flash/f4.rs
@@ -16,7 +16,7 @@ mod alt_regions {
     use embassy_hal_internal::PeripheralRef;
     use stm32_metapac::FLASH_SIZE;
 
-    use crate::_generated::flash_regions::{OTPRegion, BANK1_REGION1, BANK1_REGION2, BANK1_REGION3, OTP_REGION};
+    use crate::_generated::flash_regions::{BANK1_REGION1, BANK1_REGION2, BANK1_REGION3};
     use crate::flash::{asynch, Async, Bank1Region1, Bank1Region2, Blocking, Error, Flash, FlashBank, FlashRegion};
     use crate::peripherals::FLASH;
 
@@ -62,7 +62,6 @@ mod alt_regions {
         pub bank2_region1: AltBank2Region1<'d, MODE>,
         pub bank2_region2: AltBank2Region2<'d, MODE>,
         pub bank2_region3: AltBank2Region3<'d, MODE>,
-        pub otp_region: OTPRegion<'d, MODE>,
     }
 
     impl<'d> Flash<'d> {
@@ -79,7 +78,6 @@ mod alt_regions {
                 bank2_region1: AltBank2Region1(&ALT_BANK2_REGION1, unsafe { p.clone_unchecked() }, PhantomData),
                 bank2_region2: AltBank2Region2(&ALT_BANK2_REGION2, unsafe { p.clone_unchecked() }, PhantomData),
                 bank2_region3: AltBank2Region3(&ALT_BANK2_REGION3, unsafe { p.clone_unchecked() }, PhantomData),
-                otp_region: OTPRegion(&OTP_REGION, unsafe { p.clone_unchecked() }, PhantomData),
             }
         }
 
@@ -96,7 +94,6 @@ mod alt_regions {
                 bank2_region1: AltBank2Region1(&ALT_BANK2_REGION1, unsafe { p.clone_unchecked() }, PhantomData),
                 bank2_region2: AltBank2Region2(&ALT_BANK2_REGION2, unsafe { p.clone_unchecked() }, PhantomData),
                 bank2_region3: AltBank2Region3(&ALT_BANK2_REGION3, unsafe { p.clone_unchecked() }, PhantomData),
-                otp_region: OTPRegion(&OTP_REGION, unsafe { p.clone_unchecked() }, PhantomData),
             }
         }
     }
diff --git a/embassy-stm32/src/flash/h50.rs b/embassy-stm32/src/flash/h50.rs
index db05bef5d..5b15be261 100644
--- a/embassy-stm32/src/flash/h50.rs
+++ b/embassy-stm32/src/flash/h50.rs
@@ -55,7 +55,6 @@ pub(crate) unsafe fn blocking_write(start_address: u32, buf: &[u8; WRITE_SIZE])
 }
 
 pub(crate) unsafe fn blocking_erase_sector(sector: &FlashSector) -> Result<(), Error> {
-    assert!(sector.bank != FlashBank::Otp);
     assert!(sector.index_in_bank < 8);
 
     while busy() {}
@@ -63,9 +62,8 @@ pub(crate) unsafe fn blocking_erase_sector(sector: &FlashSector) -> Result<(), E
     interrupt::free(|_| {
         pac::FLASH.nscr().modify(|w| {
             w.set_bksel(match sector.bank {
-                FlashBank::Bank1 => Bksel::B_0X0,
-                FlashBank::Bank2 => Bksel::B_0X1,
-                _ => unreachable!(),
+                FlashBank::Bank1 => Bksel::BANK1,
+                FlashBank::Bank2 => Bksel::BANK2,
             });
             w.set_snb(sector.index_in_bank);
             w.set_ser(true);
diff --git a/embassy-stm32/src/flash/mod.rs b/embassy-stm32/src/flash/mod.rs
index 1d8031e82..9d7861816 100644
--- a/embassy-stm32/src/flash/mod.rs
+++ b/embassy-stm32/src/flash/mod.rs
@@ -89,8 +89,6 @@ pub enum FlashBank {
     Bank1 = 0,
     /// Bank 2
     Bank2 = 1,
-    /// OTP region
-    Otp,
 }
 
 #[cfg_attr(any(flash_l0, flash_l1, flash_l4, flash_wl, flash_wb), path = "l.rs")]