diff --git a/CITATION.cff b/CITATION.cff
index 4140507..08d147f 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -16,7 +16,7 @@ authors:
     orcid: 'https://orcid.org/0000-0002-7647-1816'
   - given-names: Adam
     family-names: Fekete
-    orcid: ''
+    orcid: 'https://orcid.org/0000-0002-6263-897X'
   - given-names: Luca M.
     family-names: Ghiringhelli
     orcid: 'https://orcid.org/0000-0001-5099-3029'