diff --git a/src/wasm.rs b/src/wasm.rs
index ccb226eb..95206f83 100644
--- a/src/wasm.rs
+++ b/src/wasm.rs
@@ -129,7 +129,7 @@ impl WasmQueryState {
         let mut error = None;
         let mut to_drop = false;
         match &mut self.inner {
-            Some(mut inner) => inner.with_query_state_mut(|query_state| match query_state.next() {
+            Some(inner) => inner.with_query_state_mut(|query_state| match query_state.next() {
                 Some(Ok(leaf_answer)) => {
                     js_sys::Reflect::set(&ret, &"value".into(), &leaf_answer.into()).unwrap();
                     js_sys::Reflect::set(&ret, &"done".into(), &false.into()).unwrap();