diff --git a/core/io/generic.rs b/core/io/generic.rs
index 32c8c3828..1c0a5b6ff 100644
--- a/core/io/generic.rs
+++ b/core/io/generic.rs
@@ -48,6 +48,9 @@ pub struct GenericFile {
     file: RefCell<std::fs::File>,
 }
 
+unsafe impl Send for GenericFile {}
+unsafe impl Sync for GenericFile {}
+
 impl File for GenericFile {
     // Since we let the OS handle the locking, file locking is not supported on the generic IO implementation
     // No-op implementation allows compilation but provides no actual file locking.