diff --git a/bibs/myrefs.bib b/bibs/myrefs.bib
index f74771f..3044e55 100644
--- a/bibs/myrefs.bib
+++ b/bibs/myrefs.bib
@@ -203,7 +203,7 @@
   series = lncs,
   volume = 16977,
   publisher = springer,
-  url = {https://link.springer.com/chapter/10.1007/978-3-032-40374-2_11},
+  url = {https://link.springer.com/chapter/10.1007/978-3-032-40374-2\_11},
   doi    = {10.1007/978-3-032-40374-2_11},
   jh     = yes,
   jhsite = yes,