diff --git a/summerize-part-list/tool_search_part_user.py b/summerize-part-list/tool_search_part_user.py
index 06912ba4ca3640af12bcdcc88e703da728cdbba6..afde1ef53aec61481c5d72e9bcb862e5b258c830 100644
--- a/summerize-part-list/tool_search_part_user.py
+++ b/summerize-part-list/tool_search_part_user.py
@@ -26,7 +26,7 @@ def main():
         try:
             s = xlsx_conv.read_as_csv(fname)
             s = s.replace(' ', '').replace(',', '')
-            return s.find(_id) != -1
+            return s.lower().find(_id.lower()) != -1
         except:
             # Catch PermissionError etc. 
             return False