diff --git a/compareECLFiles.cmake b/compareECLFiles.cmake
index b8fcfcc5d..70ebd279d 100755
--- a/compareECLFiles.cmake
+++ b/compareECLFiles.cmake
@@ -697,6 +697,13 @@ add_test_compareECLFiles(CASENAME model4_group
                          REL_TOL ${rel_tol}
                          DIR model4)
 
+add_test_compareECLFiles(CASENAME model4_udq_group
+                         FILENAME MOD4_UDQ_ACTIONX
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR model4)
+
 add_test_compareECLFiles(CASENAME wsegsicd
 			  FILENAME TEST_WSEGSICD
 			  SIMULATOR flow
diff --git a/tests/update_reference_data.sh b/tests/update_reference_data.sh
index 4301d15a6..0185ef589 100755
--- a/tests/update_reference_data.sh
+++ b/tests/update_reference_data.sh
@@ -120,6 +120,7 @@ tests[9_4c_grpctl_msw_model2]="flow model2 9_4C_WINJ_GINJ_VREP-W_REIN-G_MSW 9_4c
 tests[9_4d_grpctl_stw_model2]="flow model2 9_4D_WINJ_GINJ_GAS_EXPORT_STW 9_4d_grpctl_stw_model2"
 tests[9_4d_grpctl_msw_model2]="flow model2 9_4D_WINJ_GINJ_GAS_EXPORT_MSW 9_4d_grpctl_msw_model2"
 tests[model4_group]="flow model4 MOD4_GRP model4_group"
+tests[model4_udq_group]="flow model4 MOD4_UDQ_ACTIONX model4_udq_group"
 tests[polymer_injectivity]="flow polymer_injectivity 2D_POLYMER_INJECTIVITY"
 tests[nnc]="flow editnnc NNC_AND_EDITNNC nnc"
 tests[udq_wconprod]="flow udq_actionx UDQ_WCONPROD udq_wconprod"