diff --git a/core/io/generic.rs b/core/io/generic.rs
index 0c35eaf52..17f51d792 100644
--- a/core/io/generic.rs
+++ b/core/io/generic.rs
@@ -15,7 +15,11 @@ impl GenericIO {
 impl IO for GenericIO {
     fn open_file(&self, path: &str, flags: OpenFlags, _direct: bool) -> Result<Rc<dyn File>> {
         trace!("open_file(path = {})", path);
-        let file = std::fs::File::open(path)?;
+        let file = std::fs::OpenOptions::new()
+            .read(true)
+            .write(true)
+            .create(matches!(flags, OpenFlags::Create))
+            .open(path)?;
         Ok(Rc::new(GenericFile {
             file: RefCell::new(file),
         }))