diff --git a/embassy-stm32/src/lib.rs b/embassy-stm32/src/lib.rs
index b0bc7ffbb..466634edf 100644
--- a/embassy-stm32/src/lib.rs
+++ b/embassy-stm32/src/lib.rs
@@ -213,6 +213,7 @@ macro_rules! bind_interrupts {
 
 // Reexports
 pub use _generated::{peripherals, Peripherals};
+#[cfg(not(feature = "_dual-core"))]
 use critical_section::CriticalSection;
 pub use embassy_hal_internal::{Peri, PeripheralType};
 #[cfg(feature = "unstable-pac")]