diff --git a/openprescribing/measures/definitions/uti_antibiotics_long_term.json b/openprescribing/measures/definitions/uti_antibiotics_long_term.json
index 31213a5d80..8792a800f8 100644
--- a/openprescribing/measures/definitions/uti_antibiotics_long_term.json
+++ b/openprescribing/measures/definitions/uti_antibiotics_long_term.json
@@ -26,19 +26,7 @@
     "numerator_where": [
       "bnf_code LIKE '0501080W0%AD' AND quantity_per_item >27--Trimethoprim 100mg tablets (brands and generic)"
     ],
-    "denominator_type": "custom",
-    "denominator_columns": [
-      "SUM(items) AS denominator"
-    ],
-    "denominator_from": "{hscic}.raw_prescribing_normalised",
-    "denominator_where": [
-      "bnf_code LIKE '0501015P0%AB' OR # Pivmecillinam HCl_Tab 200mg (brands and generic) \n",
-      "bnf_code LIKE '0501080W0%AE' OR # Trimethoprim_Tab 200mg (brands and generic) \n",
-      "bnf_code LIKE '0501130R0%AA' OR # Nitrofurantoin_Cap 50mg (brands and generic) \n",
-      "bnf_code LIKE '0501130R0%AD' OR # Nitrofurantoin_Tab 50mg (brands and generic) \n",
-      "bnf_code LIKE '0501130R0%AG' OR # Nitrofurantoin_Cap 100mg M/R (brands and generic) \n",
-      "bnf_code LIKE '0501070AE%AD' # Fosfomycin_Sachet 3g (brands and generic)"
-    ],
+    "denominator_type": "list_size",
     "no_analyse_url": true,
     "authored_by": "richard.croker@phc.ox.ac.uk",
     "checked_by": "",