diff --git a/compareECLFiles.cmake b/compareECLFiles.cmake
index 4bb6d0485..4480e680f 100755
--- a/compareECLFiles.cmake
+++ b/compareECLFiles.cmake
@@ -945,6 +945,13 @@ if(MPI_FOUND)
                                        REL_TOL ${rel_tol}
                                        DIR spe1
                                        TEST_ARGS --linear-solver-reduction=1e-7 --tolerance-cnv=5e-6 --tolerance-mb=1e-8)
+  add_test_compare_parallel_simulation(CASENAME spe1_thermal
+                                       FILENAME SPE1CASE2_THERMAL_ONEPHASE
+                                       SIMULATOR flow_onephase_energy
+                                       ABS_TOL ${abs_tol}
+                                       REL_TOL ${rel_tol}
+                                       DIR spe1
+                                       TEST_ARGS --linear-solver-reduction=1e-7 --tolerance-cnv=5e-6 --tolerance-mb=1e-8)
 
   add_test_compare_parallel_simulation(CASENAME spe1_brine
                                        FILENAME SPE1CASE1_BRINE