diff --git a/crates/bevy_ecs/src/system/mod.rs b/crates/bevy_ecs/src/system/mod.rs
index 5cd9f0c233..c49d48f853 100644
--- a/crates/bevy_ecs/src/system/mod.rs
+++ b/crates/bevy_ecs/src/system/mod.rs
@@ -308,6 +308,20 @@ pub fn assert_system_does_not_conflict<Out, Params, S: IntoSystem<(), Out, Param
     system.run((), &mut world);
 }
 
+impl<T> std::ops::Deref for In<T> {
+    type Target = T;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl<T> std::ops::DerefMut for In<T> {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::any::TypeId;