diff --git a/codecs/rotate/rotate.rs b/codecs/rotate/rotate.rs
index 11edcbd8..c69130d9 100644
--- a/codecs/rotate/rotate.rs
+++ b/codecs/rotate/rotate.rs
@@ -18,7 +18,7 @@ impl<T> HardUnwrap<T> for Option<T> {
 
     #[cfg(debug_assertions)]
     fn unwrap_hard(self) -> T {
-        o.unwrap()
+        self.unwrap()
     }
 }