diff --git a/python/dune/perftool/sumfact/symbolic.py b/python/dune/perftool/sumfact/symbolic.py
index a66d744440595b8f8d8fbf32855dddf2bfb57612..db93c6cf0145007e13dc82bbb7ff817c0b54e060 100644
--- a/python/dune/perftool/sumfact/symbolic.py
+++ b/python/dune/perftool/sumfact/symbolic.py
@@ -296,7 +296,6 @@ class SumfactKernel(SumfactKernelBase, ImmutableRecord, prim.Variable):
         else:
             # Later we identify parallely implemented kernels by the assigned buffer
             return self.buffer
-#         return (self.matrix_sequence, self.restriction, self.stage, self.buffer, self.test_element_index)
 
     @property
     def inout_key(self):