diff --git a/backend/pashub_fetcher/pashub_client.py b/backend/pashub_fetcher/pashub_client.py
index d7200a1f..ba0f0221 100644
--- a/backend/pashub_fetcher/pashub_client.py
+++ b/backend/pashub_fetcher/pashub_client.py
@@ -90,6 +90,9 @@ class PashubClient:
         if file.evidence_category is not None and file.evidence_category.lower() == "retrofit design":
             return CoreFiles.RETROFIT_DESIGN_DOC
 
+        if CoreFiles.IMPROVEMENT_OPTION_EVALUATION.value in file.file_name:
+            return CoreFiles.IMPROVEMENT_OPTION_EVALUATION
+
         for core_file in CoreFiles:
             if file.file_name.startswith(core_file.value):
                 return core_file