diff --git a/test_util/EclRegressionTest.cpp b/test_util/EclRegressionTest.cpp
index 2e2c40e76..23da4fc73 100644
--- a/test_util/EclRegressionTest.cpp
+++ b/test_util/EclRegressionTest.cpp
@@ -817,6 +817,12 @@ void ECLRegressionTest::results_rst()
                         } else if (arrayType1[i] == DOUB) {
                             auto vect1 = rst1.getRst<double>(keywords1[i], seqn, 0);
                             auto vect2 = rst2.getRst<double>(keywords2[ind2], seqn, 0);
+
+                            // hack in order to not test doubhead[1], dependent on simulation results
+                            // All ohter items in DOUBHEAD are tested with strict tolerances
+                            if (keywords1[i]=="DOUBHEAD"){
+                                vect2[1] = vect1[1];
+                            }
                             compareFloatingPointVectors(vect1, vect2, keywords1[i], reference);
                         } else if (arrayType1[i] == LOGI) {
                             auto vect1 = rst1.getRst<bool>(keywords1[i], seqn, 0);