diff --git a/docs/joss_paper/paper.md b/docs/joss_paper/paper.md
index acff3be..bedce01 100644
--- a/docs/joss_paper/paper.md
+++ b/docs/joss_paper/paper.md
@@ -26,7 +26,7 @@ authors:
   affiliation: 4
 
 - name: Axel Donath
-  orcid:
+  orcid: 0000-0003-4568-7005
   affiliation: 2
 
 affiliations: