diff --git a/arraycontext/impl/pyopencl/fake_numpy.py b/arraycontext/impl/pyopencl/fake_numpy.py
index 4e9d48be..33b0c056 100644
--- a/arraycontext/impl/pyopencl/fake_numpy.py
+++ b/arraycontext/impl/pyopencl/fake_numpy.py
@@ -269,6 +269,11 @@ def rec_equal(x, y):
 
         return result
 
+    def astype(self, a, dtype):
+        return rec_map_array_container(
+                lambda ary: ary.astype(dtype, queue=self._array_context.queue),
+                a)
+
 # }}}