diff --git a/rust/core/src/clients/serial.rs b/rust/core/src/clients/serial.rs
index d2a4c9b..88b7a9e 100644
--- a/rust/core/src/clients/serial.rs
+++ b/rust/core/src/clients/serial.rs
@@ -206,7 +206,7 @@ fn open_error(path: &str, e: &serialport::Error) -> crate::Error {
 #[cfg(test)]
 mod tests {
     use super::*;
-    #[cfg(unix)]
+    #[cfg(target_os = "linux")]
     use std::sync::mpsc;
 
     #[test]