diff --git a/extpubs.bib b/extpubs.bib
index a4a883c9..6865aea7 100644
--- a/extpubs.bib
+++ b/extpubs.bib
@@ -14128,7 +14128,7 @@ @MISC{UML:base
 
 @online{UMLspec,
   label = {UML},
-  urldate = {2024-03-10}}
+  urldate = {2024-03-10},
   title = {{UML: Unified Modeling Language}},
   url = {http://www.uml.org/spec/UML}}