diff --git a/stochastic-rs-core/src/volatility.rs b/stochastic-rs-core/src/volatility.rs
index 09dfe61..7f06953 100644
--- a/stochastic-rs-core/src/volatility.rs
+++ b/stochastic-rs-core/src/volatility.rs
@@ -1,4 +1,3 @@
-pub mod fheston;
 pub mod heston;
 pub mod rbergomi;
 pub mod sabr;