diff --git a/src/host/emscripten/mod.rs b/src/host/emscripten/mod.rs
index 21e8712..dbf5078 100644
--- a/src/host/emscripten/mod.rs
+++ b/src/host/emscripten/mod.rs
@@ -334,7 +334,7 @@ fn audio_callback_fn<D, E>(
         // and there may be underflows
         set_timeout(
             || audio_callback_fn::<D, E>(user_data_ptr, config, sample_format, buffer_size_frames),
-            buffer_size_frames * 1000 / sample_rate,
+            buffer_size_frames as u32 * 1000 / sample_rate,
         );
     }
 }