diff --git a/test/freeflow/navierstokes/CMakeLists.txt b/test/freeflow/navierstokes/CMakeLists.txt
index 35794615eb04968d3c31526c95e1e05729dfb58e..6808d3f93ce7efb8ab4ec0e84d2f5dda1fda474e 100644
--- a/test/freeflow/navierstokes/CMakeLists.txt
+++ b/test/freeflow/navierstokes/CMakeLists.txt
@@ -98,7 +98,6 @@ dune_add_test(NAME test_navierstokes_angeli
                                      ${CMAKE_CURRENT_BINARY_DIR}/test_angeli-00045.vtu
                              --command "${CMAKE_CURRENT_BINARY_DIR}/test_navierstokes_angeli")
 
-
 dune_add_test(NAME test_stokes_channel_3d
               SOURCES test_stokes_channel_3d.cc
               COMPILE_DEFINITIONS DIM_3D=1
@@ -107,7 +106,8 @@ dune_add_test(NAME test_stokes_channel_3d
               CMD_ARGS       --script fuzzy
                              --files ${CMAKE_SOURCE_DIR}/test/references/stokes_channel_3d-reference.vtu
                                      ${CMAKE_CURRENT_BINARY_DIR}/test_stokes_channel_3d-00001.vtu
-                             --command "${CMAKE_CURRENT_BINARY_DIR}/test_stokes_channel_3d")
+                             --command "${CMAKE_CURRENT_BINARY_DIR}/test_stokes_channel_3d"
+                             --zeroThreshold {"velocity_component \(m/s\)":1e-12})
 
 dune_add_test(NAME test_stokes_channel_pseudo3d
               SOURCES test_stokes_channel_3d.cc
@@ -117,4 +117,5 @@ dune_add_test(NAME test_stokes_channel_pseudo3d
               CMD_ARGS       --script fuzzy
                              --files ${CMAKE_SOURCE_DIR}/test/references/stokes_channel_pseudo3d-reference.vtu
                                      ${CMAKE_CURRENT_BINARY_DIR}/test_stokes_channel_pseudo3d-00001.vtu
-                             --command "${CMAKE_CURRENT_BINARY_DIR}/test_stokes_channel_pseudo3d")
+                             --command "${CMAKE_CURRENT_BINARY_DIR}/test_stokes_channel_pseudo3d"
+                             --zeroThreshold {"velocity_component \(m/s\)":1e-12})