diff --git a/embassy-stm32/src/flash/mod.rs b/embassy-stm32/src/flash/mod.rs
index 56a680a8..02f6c532 100644
--- a/embassy-stm32/src/flash/mod.rs
+++ b/embassy-stm32/src/flash/mod.rs
@@ -83,7 +83,6 @@ pub enum Error {
     Protected,
     Unaligned,
     Parallelism,
-    TryLockError,
 }
 
 impl NorFlashError for Error {