diff --git a/embassy-stm32/src/usart/mod.rs b/embassy-stm32/src/usart/mod.rs
index e486a5d4a..a75793f84 100644
--- a/embassy-stm32/src/usart/mod.rs
+++ b/embassy-stm32/src/usart/mod.rs
@@ -1,7 +1,7 @@
 #![macro_use]
 
 #[cfg_attr(usart_v1, path = "v1.rs")]
-//#[cfg_attr(usart_v2, path = "v2.rs")]
+#[cfg_attr(usart_v2, path = "v2.rs")]
 mod _version;
 use crate::peripherals;
 pub use _version::*;