diff --git a/testing/regress/ecl/regex_string_1.ecl b/testing/regress/ecl/regex_string_1.ecl
index d0efff8e05f..dbefa364457 100644
--- a/testing/regress/ecl/regex_string_1.ecl
+++ b/testing/regress/ecl/regex_string_1.ecl
@@ -11,6 +11,9 @@
     See the License for the specific language governing permissions and
     limitations under the License.
 ############################################################################## */
+
+//Tests derived from the python3 test suite
+
 #OPTION('globalFold', FALSE);
 
 regexTests := DATASET