diff --git a/src/query.rs b/src/query.rs
index 107c1a32..d58f7428 100644
--- a/src/query.rs
+++ b/src/query.rs
@@ -147,7 +147,7 @@ impl Query {
         let use_post = !read_only || query.len() > MAX_QUERY_LEN_TO_USE_GET;
 
         let (method, body, content_length) = if use_post {
-            if read_only {
+            if read_only && !self.client.options.contains_key("readonly") {
                 pairs.append_pair("readonly", "1");
             }
             let len = query.len();
diff --git a/tests/it/query.rs b/tests/it/query.rs
index 80e01588..5c464e1f 100644
--- a/tests/it/query.rs
+++ b/tests/it/query.rs
@@ -106,6 +106,16 @@ async fn long_query() {
         .unwrap();
 
     assert_eq!(got_string, long_string);
+
+    let got_string = client
+        .query("select ?")
+        .bind(&long_string)
+        .with_option("readonly", "2")
+        .fetch_one::<String>()
+        .await
+        .unwrap();
+
+    assert_eq!(got_string, long_string);
 }
 
 // See #22.