diff --git a/src/semaphore.rs b/src/semaphore.rs
index acb8a3b..4f28055 100644
--- a/src/semaphore.rs
+++ b/src/semaphore.rs
@@ -152,7 +152,7 @@ impl Semaphore {
                 Ordering::AcqRel,
                 Ordering::Acquire,
             ) {
-                Ok(_) => return Some(SemaphoreGuardArc(self.clone())),
+                Ok(_) => return Some(SemaphoreGuardArc(Some(self.clone()))),
                 Err(c) => count = c,
             }
         }