diff --git a/test/poisson/dimension-grid-variations/CMakeLists.txt b/test/poisson/dimension-grid-variations/CMakeLists.txt
index 13b52b6dc48b7b6b17bdd5a5a4b723f91de2954b..9f2229d084feb7e05baa3111ce4b6d4879269a5f 100644
--- a/test/poisson/dimension-grid-variations/CMakeLists.txt
+++ b/test/poisson/dimension-grid-variations/CMakeLists.txt
@@ -13,7 +13,7 @@ dune_add_system_test(TARGET poisson_1d_cg_interval
 
 add_generated_executable(UFLFILE poisson_1d_dg_interval.ufl
                          TARGET poisson_1d_dg_interval
-                         FORM_COMPILER_ARGS --exact-solution-expression g --compare-dofs 1e-2 --compare-l2errorsquared 1e-7
+                         FORM_COMPILER_ARGS --exact-solution-expression g --compare-dofs 1e-2 --compare-l2errorsquared 1e-5
                          )
 
 dune_add_system_test(TARGET poisson_1d_dg_interval