From ddf1b9a902a6e7fa5271808cfd77b6c2f96a2e8c Mon Sep 17 00:00:00 2001
From: Abhimanyu Susobhanan <abhisrkckl@gmail.com>
Date: Tue, 10 Oct 2023 09:34:34 -0500
Subject: [PATCH] no unfittable params in plk

---
 src/pint/pintk/plk.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pint/pintk/plk.py b/src/pint/pintk/plk.py
index 368e19599..3a32ad013 100644
--- a/src/pint/pintk/plk.py
+++ b/src/pint/pintk/plk.py
@@ -208,6 +208,7 @@ def addFitCheckBoxes(self, model):
                 for p in model.components[comp].params
                 if p not in pulsar.nofitboxpars
                 and getattr(model, p).quantity is not None
+                and p in model.fittable_params
             ]
 
             # Don't bother showing components without any fittable parameters