diff --git a/arraycontext/impl/pyopencl.py b/arraycontext/impl/pyopencl.py
index 6d8cf758d2792fc9ef4e3baff19e6ce19584d02e..80f0bb40e50eafb982c8d88aaf0b9736fff91970 100644
--- a/arraycontext/impl/pyopencl.py
+++ b/arraycontext/impl/pyopencl.py
@@ -436,6 +436,7 @@ class PyOpenCLArrayContext(ArrayContext):
     def clone(self):
         return type(self)(self.queue, self.allocator, self._wait_event_queue_length)
 
+    @property
     def permits_inplace_modification(self):
         return True