diff --git a/compareECLFiles.cmake b/compareECLFiles.cmake
index 9bf092c22..99820f5bc 100755
--- a/compareECLFiles.cmake
+++ b/compareECLFiles.cmake
@@ -450,6 +450,13 @@ add_test_compareECLFiles(CASENAME udq_wconprod
                          REL_TOL ${rel_tol}
                          DIR udq_actionx)
 
+add_test_compareECLFiles(CASENAME pinch_multz_all
+                         FILENAME PINCH_MULTZ_ALL
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR pinch)
+
 if (opm-common_EMBEDDED_PYTHON)
   add_test_compareECLFiles(CASENAME udq_pyaction
                            FILENAME PYACTION_WCONPROD
diff --git a/tests/update_reference_data.sh b/tests/update_reference_data.sh
index f2e0b36e1..02fa9de2f 100755
--- a/tests/update_reference_data.sh
+++ b/tests/update_reference_data.sh
@@ -130,6 +130,7 @@ tests[udq_pyaction]="flow udq_actionx PYACTION_WCONPROD udq_pyaction"
 tests[spe1_foam]="flow spe1_foam SPE1FOAM"
 tests[wsegsicd]="flow wsegsicd TEST_WSEGSICD"
 tests[bc_lab]="flow bc_lab BC_LAB"
+tests[pinch_multz_all]="flow pinch PINCH_MULTZ_ALL pinch_multz_all"
 
 changed_tests=""