diff --git a/src/uu/df/src/filesystem.rs b/src/uu/df/src/filesystem.rs
index 07d24b83f..821c99ab4 100644
--- a/src/uu/df/src/filesystem.rs
+++ b/src/uu/df/src/filesystem.rs
@@ -220,7 +220,9 @@ mod tests {
         }
 
         #[test]
-        #[allow(clippy::assigning_clones)]
+        // clippy::assigning_clones added with Rust 1.78
+        // Rust version = 1.76 on OpenBSD stable/7.5
+        #[cfg_attr(not(target_os = "openbsd"), allow(clippy::assigning_clones))]
         fn test_dev_name_match() {
             let tmp = tempfile::TempDir::new().expect("Failed to create temp dir");
             let dev_name = std::fs::canonicalize(tmp.path())