diff --git a/src/lib.rs b/src/lib.rs
index ef5d1893..fb369ff5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1588,6 +1588,10 @@ mod test {
 
         assert!(mmap.is_ok());
 
+        if let Ok(mmap) = mmap {
+            std::mem::drop(mmap);
+        }
+
         let remove_res = fs::remove_file(path.clone());
         if remove_res.is_err() {
             println!("remove_res: {:?}", remove_res);