diff --git a/examples/dagrt_fusion/fusion-study.py b/examples/dagrt_fusion/fusion-study.py
index ab33eb9105c0cc4d441ccf597594fb86a6c34051..f130c2486cdc271f5935da2aa79a8072b9b45644 100644
--- a/examples/dagrt_fusion/fusion-study.py
+++ b/examples/dagrt_fusion/fusion-study.py
@@ -212,6 +212,10 @@ def transcribe_phase(dag, field_var_name, field_components, phase_name,
 
 class RK4TimeStepperBase(object):
 
+    def __init__(self, queue, component_getter):
+        self.queue = queue
+        self.component_getter = component_getter
+
     def get_initial_context(self, fields, t_start, dt):
         from pytools.obj_array import join_fields
 
@@ -308,6 +312,8 @@ class RK4TimeStepper(RK4TimeStepperBase):
                its components
 
         """
+        super().__init__(queue, component_getter)
+
         from pymbolic import var
 
         # Construct sym_rhs to have the effect of replacing the RHS calls in the
@@ -351,10 +357,9 @@ class FusedRK4TimeStepper(RK4TimeStepperBase):
 
     def __init__(self, queue, discr, field_var_name, sym_rhs, num_fields,
                  component_getter, exec_mapper_factory=ExecutionMapper):
-        self.queue = queue
+        super().__init__(queue, component_getter)
         self.set_up_stepper(
                 discr, field_var_name, sym_rhs, num_fields, exec_mapper_factory)
-        self.component_getter = component_getter
 
 # }}}
 
@@ -605,7 +610,7 @@ class MemOpCountingExecutionMapper(ExecutionMapper):
 # {{{ mem op counter check
 
 @pytest.mark.parametrize("use_fusion", (True, False))
-def test_stepper_mem_ops(use_fusion=True):
+def test_stepper_mem_ops(use_fusion):
     cl_ctx = cl.create_some_context()
     queue = cl.CommandQueue(cl_ctx)