diff --git a/external_full.xml b/external_full.xml
index cf7588c..4c2b9ff 100644
--- a/external_full.xml
+++ b/external_full.xml
@@ -105,6 +105,9 @@
   <project path="src/third_party/kernel/v5.10"
            name="third_party/kernel"
            revision="refs/heads/cos-5.10" />
+  <project path="src/third_party/kernel/v5.15"
+           name="third_party/kernel"
+           revision="refs/heads/cos-5.15" />
 
   <repo-hooks enabled-list="pre-upload"
            in-project="cos/repohooks" />