diff --git a/grudge/symbolic/operators.py b/grudge/symbolic/operators.py
index b6db10eb62869217a201bdbd58bc0da9bfe72956..a3c676b4ceca1f86b542cf3d7036a85773d3c4d5 100644
--- a/grudge/symbolic/operators.py
+++ b/grudge/symbolic/operators.py
@@ -136,6 +136,9 @@ class Operator(pymbolic.primitives.Expression):
     def __getinitargs__(self):
         return (self.dd_in, self.dd_out,)
 
+    def make_stringifier(self, originating_stringifier=None):
+        from grudge.symbolic.mappers import StringifyMapper
+        return StringifyMapper()
 # }}}