diff --git a/src/lib.rs b/src/lib.rs
index 181a982..aed74a7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -17,6 +17,7 @@ use crate::wg::WireGuardTunnel;
 
 pub mod config;
 pub mod events;
+#[cfg(feature = "lib")]
 pub mod ffi;
 #[cfg(feature = "pcap")]
 pub mod pcap;