diff --git a/config/retriex/retrieval.yaml b/config/retriex/retrieval.yaml
index a45c8e5..89f9005 100644
--- a/config/retriex/retrieval.yaml
+++ b/config/retriex/retrieval.yaml
@@ -62,6 +62,7 @@ parameters:
       - indikatortyp
       - reagenz
       - reagens
+      - chemie
     exact_selection_indicator_question_phrases:
       - mit welchem
       - womit