diff --git a/permissions.go b/permissions.go
index 1fe8634..f3243fa 100644
--- a/permissions.go
+++ b/permissions.go
@@ -133,7 +133,7 @@ type ReadPermissable interface {
 }
 
 type PermissionsEvaluator interface {
-	HasReadPermission(user string, rp ReadPermissable) (bool, error)
+	HasReadPermission(user string, traceparent string, rp ReadPermissable) (bool, error)
 }
 
 type FiatClient interface {