diff --git a/src/cltl/nlp/spacy_nlp.py b/src/cltl/nlp/spacy_nlp.py
index 7815a43..a4eec76 100644
--- a/src/cltl/nlp/spacy_nlp.py
+++ b/src/cltl/nlp/spacy_nlp.py
@@ -46,7 +46,7 @@ def _analyze_entities(self, doc):
                         type = EntityType.OBJECT
 
                 if type:
-                    entities.append(Entity(token.text, type, (token.idx, token.idx + len(token.text))))
+                    entities.append(Entity(token.lemma_.lower(), type, (token.idx, token.idx + len(token.text))))
 
                 predicates[head_id][token.dep_] = token.lemma_