diff --git a/compareECLFiles.cmake b/compareECLFiles.cmake
index 47ffee92d..546900abc 100755
--- a/compareECLFiles.cmake
+++ b/compareECLFiles.cmake
@@ -987,6 +987,13 @@ add_test_compareECLFiles(CASENAME micp
                          REL_TOL ${rel_tol}
                          DIR micp)
 
+add_test_compareECLFiles(CASENAME 0_base_model6
+                         FILENAME 0_BASE_MODEL6
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR model6)
+
 # Restart tests
 opm_set_test_driver(${PROJECT_SOURCE_DIR}/tests/run-restart-regressionTest.sh "")
 
diff --git a/tests/update_reference_data.sh b/tests/update_reference_data.sh
index 6ec6eaf7a..841d69280 100755
--- a/tests/update_reference_data.sh
+++ b/tests/update_reference_data.sh
@@ -162,6 +162,7 @@ tests[actionx_gconprod]="flow actionx ACTIONX_GCONPROD"
 tests[actionx_wconinje]="flow actionx ACTIONX_WCONINJE"
 tests[actionx_wefac]="flow actionx ACTIONX_WEFAC"
 tests[micp]="flow micp MICP"
+tests[0_base_model6]="flow model6 0_BASE_MODEL6"
 
 changed_tests=""