diff --git a/relay/channel/vertex/adaptor.go b/relay/channel/vertex/adaptor.go
index 445554b8..a4b303e2 100644
--- a/relay/channel/vertex/adaptor.go
+++ b/relay/channel/vertex/adaptor.go
@@ -222,6 +222,9 @@ func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *rel
 	if a.AccountCredentials.ProjectID != "" {
 		req.Set("x-goog-user-project", a.AccountCredentials.ProjectID)
 	}
+	if strings.Contains(info.UpstreamModelName, "claude") {
+		claude.CommonClaudeHeadersOperation(c, req, info)
+	}
 	return nil
 }