diff --git a/ProcessLib/HT/Tests.cmake b/ProcessLib/HT/Tests.cmake
index 4036ed06b3321decafba92b098eb40121d8cfe5a..45c61b36e8c9642d66ba32077455f91ce23d9831 100644
--- a/ProcessLib/HT/Tests.cmake
+++ b/ProcessLib/HT/Tests.cmake
@@ -357,8 +357,8 @@ AddTest(
     TESTER vtkdiff
     REQUIREMENTS NOT OGS_USE_MPI
     DIFF_DATA
-    GLOB ConstViscosityThermalConvection_pcs_0_ts_*.vtu T T 1e-14 1e-13
-    GLOB ConstViscosityThermalConvection_pcs_0_ts_*.vtu p p 1e-15 1e-14
+    GLOB constraint_bc_1e3_pcs_0_ts_*.vtu T T 1e-14 1e-13
+    GLOB constraint_bc_1e3_pcs_0_ts_*.vtu p p 1e-15 1e-14
 )
 
 # MPI/PETSc tests
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3.prj b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3.prj
index e76ad2b33bbaddaf405b03e57a37414e3c5a2895..18b5a45c07795f4c4e259329d6eb247ff93a48c3 100644
--- a/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3.prj
+++ b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3.prj
@@ -111,7 +111,7 @@
         </processes>
         <output>
             <type>VTK</type>
-            <prefix>ConstViscosityThermalConvection</prefix>
+            <prefix>constraint_bc_1e3</prefix>
             <timesteps>
                 <pair>
                     <repeat> 10 </repeat>
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_0_t_0.000000.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_0_t_0.000000.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_0_t_0.000000.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_0_t_0.000000.vtu
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_1_t_0.000000.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_1_t_0.000000.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_1_t_0.000000.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_1_t_0.000000.vtu
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_2_t_0.000010.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_2_t_0.000010.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_2_t_0.000010.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_2_t_0.000010.vtu
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_3_t_0.001010.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_3_t_0.001010.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_3_t_0.001010.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_3_t_0.001010.vtu
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_4_t_0.101010.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_4_t_0.101010.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_4_t_0.101010.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_4_t_0.101010.vtu
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_5_t_1.101010.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_5_t_1.101010.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_5_t_1.101010.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_5_t_1.101010.vtu
diff --git a/Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_6_t_10.000000.vtu b/Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_6_t_10.000000.vtu
similarity index 100%
rename from Tests/Data/Parabolic/HT/SimpleSynthetics/ConstViscosityThermalConvection_pcs_0_ts_6_t_10.000000.vtu
rename to Tests/Data/Parabolic/HT/SimpleSynthetics/constraint_bc_1e3_pcs_0_ts_6_t_10.000000.vtu