diff --git a/src/runtime/mod.rs b/src/runtime/mod.rs
index f1e8e4b..4ef79f3 100644
--- a/src/runtime/mod.rs
+++ b/src/runtime/mod.rs
@@ -28,7 +28,7 @@ const TARGET_AUDIO_FREQ: i32 = 44100;
 pub type ActiveRuntime = ();
 
 impl Runtime for () {
-    fn init_log(level: log::Level) -> Result<(), Box<dyn Error>> {
+    fn init_log(_level: log::Level) -> Result<(), Box<dyn Error>> {
         Ok(())
     }