diff --git a/python/dune/perftool/pdelab/driver/instationary.py b/python/dune/perftool/pdelab/driver/instationary.py
index 4d8064d6286edf6b5ed59f6bea46832ea093ea1e..1d4b9e87be8c0e5f55a55556c2a2abb3ec7c62d4 100644
--- a/python/dune/perftool/pdelab/driver/instationary.py
+++ b/python/dune/perftool/pdelab/driver/instationary.py
@@ -22,8 +22,10 @@ from dune.perftool.pdelab.driver.interpolate import (interpolate_dirichlet_data,
                                                      )
 from dune.perftool.pdelab.driver.solve import (print_matrix,
                                                print_residual,
+                                               name_linearsolver,
                                                name_stationarynonlinearproblemsolver,
                                                name_vector,
+                                               type_linearsolver,
                                                type_stationarynonlinearproblemssolver,
                                                type_vector,
                                                )
diff --git a/test/hyperbolic/linearacoustics.mini b/test/hyperbolic/linearacoustics.mini
index 7d4eb12dafdf7884e8b97f5d4ae61a393265ba11..95a8cde68a159dac8f9d7f4dcc98711edb8e1ad2 100644
--- a/test/hyperbolic/linearacoustics.mini
+++ b/test/hyperbolic/linearacoustics.mini
@@ -10,7 +10,6 @@ elementType = hexahedral
 [instat]
 T = 0.5
 dt = 0.005
-theta = 0.0
 
 [wrapper.vtkcompare]
 name = {__name}
@@ -18,4 +17,4 @@ extension = vtu
 
 [formcompiler]
 numerical_jacobian = 1, 0 | expand diff
-explicit_time_stepping = 0
+explicit_time_stepping = 1
\ No newline at end of file
diff --git a/test/sumfact/hyperbolic/linearacoustics.mini b/test/sumfact/hyperbolic/linearacoustics.mini
index 8ad418e27ed41bf26f99d5348260a978b59e09b7..a9e5876d3e39a50faffa41b50afb2fb6ffe1f9e9 100644
--- a/test/sumfact/hyperbolic/linearacoustics.mini
+++ b/test/sumfact/hyperbolic/linearacoustics.mini
@@ -10,7 +10,6 @@ elementType = hexahedral
 [instat]
 T = 0.5
 dt = 0.005
-theta = 0.0
 
 [wrapper.vtkcompare]
 name = {__name}
@@ -18,5 +17,4 @@ extension = vtu
 
 [formcompiler]
 numerical_jacobian = 1, 0 | expand diff
-explicit_time_stepping = 0
 sumfact = 1
diff --git a/test/sumfact/hyperbolic/lineartransport.mini b/test/sumfact/hyperbolic/lineartransport.mini
index 08ca74767cf6df60c83cbbb803a5c1ff53d1b0c1..d0158ff865bdd393625c59bd4540337d062a6c70 100644
--- a/test/sumfact/hyperbolic/lineartransport.mini
+++ b/test/sumfact/hyperbolic/lineartransport.mini
@@ -7,14 +7,12 @@ elementType = hexahedral
 [instat]
 T = 1.5
 dt = 0.001
-theta = 1.0
 
 [wrapper.vtkcompare]
 name = {__name}
 extension = vtu
 
 [formcompiler]
-explicit_time_stepping = 0
 sumfact = 1
 #fastdg = 1
 # This tests that all mass is transported out of the domain.