diff --git a/src/mobile.rs b/src/mobile.rs
index af71443..843fb4c 100644
--- a/src/mobile.rs
+++ b/src/mobile.rs
@@ -28,14 +28,14 @@ impl<R: Runtime> Duck<R> {
   pub fn duck(&self) -> crate::Result<DuckResponse> {
     self
       .0
-      .run_mobile_plugin("duck")
+      .run_mobile_plugin("duck", Some(()))
       .map_err(Into::into)
   }
 
   pub fn unduck(&self) -> crate::Result<DuckResponse> {
     self
       .0
-      .run_mobile_plugin("unduck")
+      .run_mobile_plugin("unduck", Some(()))
       .map_err(Into::into)
   }
 }