diff --git a/csv_parser/csv_parser.py b/csv_parser/csv_parser.py
index d75a53f3d..8b55573b3 100644
--- a/csv_parser/csv_parser.py
+++ b/csv_parser/csv_parser.py
@@ -88,7 +88,7 @@ def get_nomenclature(elem):
         path_file = ''
         nomenclature_files = os.listdir(os.path.join("..", "nomenclature_parser", "out", "latest", "csv"))
         for filename in nomenclature_files:
-            if filename.startswith(nomenclature_name):
+            if filename[:-4] == nomenclature_name:
                 path_file = os.path.join("..", "nomenclature_parser", "out", "latest", "csv", filename)
 
         if path_file != '':