diff --git a/embassy-stm32/src/rcc/f4.rs b/embassy-stm32/src/rcc/f4.rs
index d8b689e4..10d3322a 100644
--- a/embassy-stm32/src/rcc/f4.rs
+++ b/embassy-stm32/src/rcc/f4.rs
@@ -17,7 +17,7 @@ use crate::{peripherals, Peripheral};
 pub const HSI_FREQ: Hertz = Hertz(16_000_000);
 
 /// LSI speed
-pub const LSI_FREQ: Hertz = Hertz(32_768);
+pub const LSI_FREQ: Hertz = Hertz(32_000);
 
 /// Clocks configuration
 #[non_exhaustive]