diff --git a/etl/epc/Pipeline.py b/etl/epc/Pipeline.py
index 6abf05bd..3a078703 100644
--- a/etl/epc/Pipeline.py
+++ b/etl/epc/Pipeline.py
@@ -64,6 +64,21 @@ def get_cleaned_description_mapping():
 
 clean_lookup = get_cleaned_description_mapping()
 
+# TODO: THIS IS A TEMPORARY FIX
+new_walls_description_mapping = pd.DataFrame(clean_lookup["walls-description"])
+
+import numpy as np
+
+new_walls_description_mapping["thermal_transmittance_unit"] = np.where(
+    ~pd.isnull(new_walls_description_mapping["thermal_transmittance_unit"]),
+    "w/m-¦k",
+    new_walls_description_mapping["thermal_transmittance_unit"],
+)
+
+clean_lookup["walls-description"] = new_walls_description_mapping.to_dict(
+    orient="records"
+)
+
 
 class EPCPipeline:
     """