diff --git a/src/session/src/context.rs b/src/session/src/context.rs
index 2f81dfabffb..20462933a39 100644
--- a/src/session/src/context.rs
+++ b/src/session/src/context.rs
@@ -974,7 +974,7 @@ mod test {
             assert_eq!(ctx.read_preference(), ReadPreference::Leader);
             assert!(!ctx.extensions().contains_key(READ_PREFERENCE_EXTENSION_KEY));
         }
-        for value in ["", "unknown", "follower", "follower_preferred", "random"] {
+        for value in ["", "unknown"] {
             let error = QueryContext::try_from(wire(Some(value))).unwrap_err();
             assert!(matches!(
                 error,