diff --git a/lib/wasi/src/state/types.rs b/lib/wasi/src/state/types.rs
index d4b52f42d8c..a41ec8b83df 100644
--- a/lib/wasi/src/state/types.rs
+++ b/lib/wasi/src/state/types.rs
@@ -282,7 +282,7 @@ fn platform_poll_events_to_pollevent_set(mut num: i16) -> PollEventSet {
 }
 
 #[cfg(not(unix))]
-fn platform_poll_events_to_pollevent_set(mut num: i16) -> PollEventSet {
+fn platform_poll_events_to_pollevent_set(_num: i16) -> PollEventSet {
     unimplemented!("platform_poll_events_to_pollevent_set for non-Unix")
 }
 
@@ -335,9 +335,9 @@ pub(crate) fn poll(
 
 #[cfg(not(unix))]
 pub(crate) fn poll(
-    selfs: &[&dyn WasiFile],
-    events: &[PollEventSet],
-    seen_events: &mut [PollEventSet],
+    _selfs: &[&dyn WasiFile],
+    _events: &[PollEventSet],
+    _seen_events: &mut [PollEventSet],
 ) -> Result<(), WasiFsError> {
     unimplemented!("HostFile::poll in WasiFile is not implemented for non-Unix-like targets yet");
 }