diff --git a/ProcessLib/SmallDeformation/Tests.cmake b/ProcessLib/SmallDeformation/Tests.cmake
index 240e8ba6fe5f72450ff1504d4048440668b1b557..8f7010f8aa1bdfd0fac7fa1e0ad95ae665b9cab4 100644
--- a/ProcessLib/SmallDeformation/Tests.cmake
+++ b/ProcessLib/SmallDeformation/Tests.cmake
@@ -73,7 +73,7 @@ AddTest(
     # See also the prj file.
     DIFF_DATA
     cube_1e0_dp_ref_created_with_OGS_Ehlers.vtu cube_1e0_dp_pcs_0_ts_203_t_5.100000.vtu displacement displacement 1e-14 0
-    cube_1e0_dp_ref_created_with_OGS_Ehlers.vtu cube_1e0_dp_pcs_0_ts_203_t_5.100000.vtu sigma sigma 1e-13 0
+    cube_1e0_dp_ref_created_with_OGS_Ehlers.vtu cube_1e0_dp_pcs_0_ts_203_t_5.100000.vtu sigma sigma 2e-13 0
     cube_1e0_dp_ref_created_with_OGS_Ehlers.vtu cube_1e0_dp_pcs_0_ts_203_t_5.100000.vtu epsilon epsilon 1e-14 0
 )
 
@@ -177,4 +177,4 @@ AddTest(
     REQUIREMENTS NOT OGS_USE_MPI
     DIFF_DATA
     m1_3Dtopload_pcs_0_ts_1_t_1.000000.vtu m1_3Dtopload_pcs_0_ts_1_t_1.000000.vtu displacement displacement 10e-12 0.0
-)
\ No newline at end of file
+)