diff --git a/src/docs/JOSS/paper.md b/src/docs/JOSS/paper.md
index 4f4b98eae38..1ec84011cab 100644
--- a/src/docs/JOSS/paper.md
+++ b/src/docs/JOSS/paper.md
@@ -11,7 +11,7 @@ authors:
     corresponding: true
     affiliation: 1
   - name: Ryan M. Aronson
-    affiliation: 3
+    affiliation: "2,3"
   - name: Julien R. Besset
     affiliation: 7
   - name: Andrea Borio