1 files changed, 8 insertions, 1 deletions
diff --git a/runtime/ops/fs.rs b/runtime/ops/fs.rs
index ec60eed62..b9f637448 100644
--- a/runtime/ops/fs.rs
+++ b/runtime/ops/fs.rs
@@ -525,7 +525,14 @@ fn op_umask(state: &mut OpState, mask: Option<u32>) -> Result<u32, AnyError> {
       let _ = umask(prev);
       prev
     };
-    Ok(r.bits() as u32)
+    #[cfg(target_os = "linux")]
+    {
+      Ok(r.bits())
+    }
+    #[cfg(target_os = "macos")]
+    {
+      Ok(r.bits() as u32)
+    }
   }
 }