diff --git a/python/dune/perftool/pdelab/driver.py b/python/dune/perftool/pdelab/driver.py
index a2d8aa35af5b209a012dcebeea89c7e0bb6d18f0..39ef2e247a8206c78339d3e6c6dad0ec242d8c50 100644
--- a/python/dune/perftool/pdelab/driver.py
+++ b/python/dune/perftool/pdelab/driver.py
@@ -691,6 +691,8 @@ def typedef_gridoperator(name, formdata):
     df = type_domainfield()
     r = type_range()
     if get_option("fastdg"):
+        if not get_option("sumfact"):
+            raise PerftoolCodegenError("FastDGGridOperator is only implemented for sumfactorization.")
         include_file("dune/pdelab/gridoperator/fastdg.hh", filetag="driver")
         return "using {} = Dune::PDELab::FastDGGridOperator<{}, {}, {}, {}, {}, {}, {}, {}, {}>;".format(name, ugfs, vgfs, lop, mb, df, r, r, ucc, vcc)
     else:
diff --git a/test/poisson/poisson_dg_quadrilateral.mini b/test/poisson/poisson_dg_quadrilateral.mini
index 399058462084326bef74c4bf82acc2df76cdcc48..97c59253e3d1fe2282011779bc4f52637b2edc03 100644
--- a/test/poisson/poisson_dg_quadrilateral.mini
+++ b/test/poisson/poisson_dg_quadrilateral.mini
@@ -1,7 +1,6 @@
 __name = poisson_dg_quadrilateral_{__exec_suffix}
-__exec_suffix = {__exec_symdiff}_{__exec_fastdg}
+__exec_suffix = {__exec_symdiff}
 __exec_symdiff = numdiff, symdiff |expand num
-__exec_fastdg = fastdg, standarddg | expand fastdg
 
 extension = 1.0 1.0
 cells = 32 32
@@ -14,4 +13,3 @@ extension = vtu
 numerical_jacobian = 1, 0 | expand num
 exact_solution_expression = g
 compare_l2errorsquared = 2e-5
-fastdg = 1, 0 | expand fastdg
diff --git a/test/sumfact/poisson/CMakeLists.txt b/test/sumfact/poisson/CMakeLists.txt
index 9e7539d2056411c6d1852ce52cef9e7f2b37b0ec..08ca1ca73e0c4d1aefaffadff3c48284f494b7be 100644
--- a/test/sumfact/poisson/CMakeLists.txt
+++ b/test/sumfact/poisson/CMakeLists.txt
@@ -1,17 +1,16 @@
-# 1. Poisson Test Case with order 1
+# Poisson CG 2D
 dune_add_formcompiler_system_test(UFLFILE poisson_2d_order1.ufl
                                   BASENAME sumfact_poisson_2d_order1
                                   INIFILE poisson_2d_order1.mini
                                   )
 
-
-# 1. Poisson Test Case with order 2
 dune_add_formcompiler_system_test(UFLFILE poisson_2d_order2.ufl
                                   BASENAME sumfact_poisson_2d_order2
                                   INIFILE poisson_2d_order2.mini
                                   )
 
-# 3D Test cases
+
+# Poisson CG 3D
 dune_add_formcompiler_system_test(UFLFILE poisson_3d_order1.ufl
                                   BASENAME sumfact_poisson_3d_order1
                                   INIFILE poisson_3d_order1.mini
@@ -28,7 +27,8 @@ dune_add_formcompiler_system_test(UFLFILE opcount_poisson_2d_order2.ufl
                                   INIFILE opcount_poisson_2d_order2.mini
                                   )
 
-# 2. Poisson Test Case: DG, f + pure dirichlet
+
+# Poisson DG
 dune_add_formcompiler_system_test(UFLFILE poisson_dg.ufl
                                   BASENAME sumfact_poisson_dg
                                   INIFILE poisson_dg.mini
diff --git a/test/sumfact/poisson/poisson_dg.mini b/test/sumfact/poisson/poisson_dg.mini
index 747a5b7dac42a836c8a4eb0acdfc59b418f58581..1e1127ec8bd5a684876bf1b6b7f8d944008dd723 100644
--- a/test/sumfact/poisson/poisson_dg.mini
+++ b/test/sumfact/poisson/poisson_dg.mini
@@ -1,9 +1,10 @@
 __name = sumfact_poisson_dg_{__exec_suffix}
-__exec_suffix = {diff_suffix}_{quadvec_suffix}_{gradvec_suffix}
+__exec_suffix = {diff_suffix}_{quadvec_suffix}_{gradvec_suffix}_{fastdg_suffix}
 
 diff_suffix = numdiff, symdiff | expand num
 quadvec_suffix = quadvec, nonquadvec | expand quad
 gradvec_suffix = gradvec, nongradvec | expand grad
+fastdg_suffix = fastdg, standarddg | expand fastdg
 
 cells = 16 16
 extension = 1. 1.
@@ -19,3 +20,4 @@ exact_solution_expression = g
 compare_l2errorsquared = 1e-4
 vectorize_quad = 1, 0 | expand quad
 vectorize_grads = 1, 0 | expand grad
+fastdg = 1, 0 | expand fastdg