diff --git a/session/object.go b/session/object.go
index 86ea7cb..3641bd1 100644
--- a/session/object.go
+++ b/session/object.go
@@ -237,6 +237,7 @@ const (
 	VerbObjectDelete    // Delete rpc
 	VerbObjectRange     // GetRange rpc
 	VerbObjectRangeHash // GetRangeHash rpc
+	VerbObjectPatch     // Patch rpc
 )
 
 // ForVerb specifies the object operation of the session scope. Each
diff --git a/session/object_test.go b/session/object_test.go
index 6990ff8..59ff8d6 100644
--- a/session/object_test.go
+++ b/session/object_test.go
@@ -599,6 +599,7 @@ func TestObject_ForVerb(t *testing.T) {
 		session.VerbObjectRangeHash: v2session.ObjectVerbRangeHash,
 		session.VerbObjectRange:     v2session.ObjectVerbRange,
 		session.VerbObjectDelete:    v2session.ObjectVerbDelete,
+		session.VerbObjectPatch:     v2session.ObjectVerbPatch,
 	} {
 		val.ForVerb(from)