diff --git a/arraycontext/impl/pytato.py b/arraycontext/impl/pytato.py
index d6d7bac92094936f5086d4d05e1a3aa3def0c46c..b6bf800bcf3016c6090952dbd0f8e3e37c8a7dac 100644
--- a/arraycontext/impl/pytato.py
+++ b/arraycontext/impl/pytato.py
@@ -144,6 +144,10 @@ class _PytatoFakeNumpyNamespace(BaseFakeNumpyNamespace):
         import pytato as pt
         return rec_multimap_array_container(pt.conj, x)
 
+    def arctan2(self, y, x):
+        import pytato as pt
+        return rec_multimap_array_container(pt.arctan2, y, x)
+
     # }}}