diff --git a/docs/v1/references.bib b/docs/v1/references.bib
index 4d259343..ae47c0d6 100644
--- a/docs/v1/references.bib
+++ b/docs/v1/references.bib
@@ -151,6 +151,11 @@ @ONLINE { RFC2698
     url = "https://tools.ietf.org/html/rfc2698"
 }
 
+@ONLINE { RFC2697,
+    title = "A Single Rate Three Color Marker",
+    url = "https://tools.ietf.org/html/rfc2697"
+}
+
 @ONLINE { P4MatchTypes,
     title = "Match types in P4",
     url = "https://p4.org/p4-spec/docs/P4-16-v1.2.1.html#sec-match-kind-type"