diff --git a/src/lib.rs b/src/lib.rs
index 1de0f00..c02d57f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -967,6 +967,8 @@ mod tests {
 
         let res = read_key(&consul, key).await.unwrap();
         assert_eq!(res.index, index);
+        create_or_update_key_value(&consul, key, string_value).await.unwrap();
+        assert_eq!(res.index, index);
         create_or_update_key_value(&consul, key, "This is a new test").await.unwrap();
         let res = read_key(&consul, key).await.unwrap();
         assert!(res.index > index);