diff --git a/basis_set_exchange/data/epc-8s8p8d.metadata.json b/basis_set_exchange/data/epc-8s8p8d.metadata.json
index ff768194..8e66a993 100644
--- a/basis_set_exchange/data/epc-8s8p8d.metadata.json
+++ b/basis_set_exchange/data/epc-8s8p8d.metadata.json
@@ -10,5 +10,9 @@
   "family": "pb",
   "description": "Even-tempered 8s8p8d protonic basis",
   "role": "orbital",
-  "auxiliaries": {}
-}
\ No newline at end of file
+  "auxiliaries": {
+    "jkfit": "epc-10s10p10d10f",
+    "jfit": "epc-10s10p10d10f",
+    "rifit": "epc-10s10p10d10f"
+  }
+}