diff --git a/scripts/mass/dark.py b/scripts/mass/dark.py
index b06efba..69d75a5 100644
--- a/scripts/mass/dark.py
+++ b/scripts/mass/dark.py
@@ -189,6 +189,14 @@
     results,
 )
 
+"""
+__Kaplinghat SIDM Cored NFW__
+
+KaplinghatCoredNFWSph uses nested numerical projection for its nonzero SIDM core.
+It is therefore exercised below in the targeted convergence_func enclosed-mass
+cross-check rather than in the full-grid potential finite-difference sweep.
+"""
+
 """
 __Summary__
 """
@@ -220,6 +228,16 @@
         ),
         tol,
     ),
+    check_convergence_func_enclosed_mass(
+        "KaplinghatCoredNFWSph",
+        ag.mp.KaplinghatCoredNFWSph(
+            centre=(0.0, 0.0),
+            kappa_s=0.2,
+            scale_radius=1.2,
+            interaction_radius=0.3,
+        ),
+        tol,
+    ),
 ]
 
 print_convergence_func_table(cf_results)