diff --git a/src/lib.rs b/src/lib.rs
index df869ca2..c43ff623 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -785,12 +785,14 @@ impl Deadline {
         if let Some(imp) = &self.imp {
             let elapsed = imp.start.elapsed();
             if elapsed > imp.timeout {
-                if imp.print_message.compare_exchange(
+                if match imp.print_message.compare_exchange(
                     true,
                     false,
                     Ordering::SeqCst,
                     Ordering::SeqCst,
                 ) {
+                    Ok(x) | Err(x) => x,
+                } {
                     warn!("Timed out after {} second(s)", elapsed.as_secs());
                 }
                 return true;