diff --git a/src/states.rs b/src/states.rs
index 4f79763..76e9eec 100644
--- a/src/states.rs
+++ b/src/states.rs
@@ -18,6 +18,13 @@ pub trait FutureStateChange: Fn() -> Result<()> + Send + Sync {
     {
         self
     }
+
+    fn as_static(&'static self) -> &'static (dyn Fn() -> Result<()> + Send + Sync + 'static)
+    where
+        Self: Sized,
+    {
+        self
+    }
 }
 
 impl<F: Fn() -> Result<()> + Clone + Send + Sync> FutureStateChange for F {