diff --git a/tun/src/unix/apple/mod.rs b/tun/src/unix/apple/mod.rs
index f3ee207..4230c41 100644
--- a/tun/src/unix/apple/mod.rs
+++ b/tun/src/unix/apple/mod.rs
@@ -122,6 +122,7 @@ impl TunInterface {
     }
 }
 
+#[cfg(test)]
 mod test {
     use super::*;
     use std::net::Ipv4Addr;
diff --git a/tun/src/unix/linux/mod.rs b/tun/src/unix/linux/mod.rs
index 42a1754..4f6f882 100644
--- a/tun/src/unix/linux/mod.rs
+++ b/tun/src/unix/linux/mod.rs
@@ -120,6 +120,7 @@ impl TunInterface {
     }
 }
 
+#[cfg(test)]
 mod test {
     use super::TunInterface;
     use std::net::Ipv4Addr;