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grudge/symbolic/operators.py

@@ -177,7 +177,7 @@ class InterpolationOperator(ProjectionOperator):
         from warnings import warn
         warn("'InterpolationOperator' is deprecated, "
                 "use 'ProjectionOperator' instead.",
-                DeprecationWarning, stacklevel=1)
+                DeprecationWarning, stacklevel=2)
 
         super(InterpolationOperator, self).__init__(dd_in, dd_out)