diff --git a/paper/paper.bib b/paper/paper.bib
index 640e81ab..0b6c435b 100644
--- a/paper/paper.bib
+++ b/paper/paper.bib
@@ -182,7 +182,7 @@ @software{gmso
     Jones Chris and Dice, Bradley and Crawford, Brad and Iacovella, Chris and Albooyeh, Marjan and
     Smith, Ryan and Bansal, Arjun and Marin-Rimoldi, Eliseo and zijiewu3},
 	title = {{GMSO: General Molecular Simulation Object}},
-	doi = {10.5281/zenodo.8370982}
+	doi = {10.5281/zenodo.8370982},
 	url = {https://gmso.mosdef.org/en/stable/},
 	version = {0.11.2},
 	year = {2023},