diff --git a/t/db_dependent/Biblio/TransformMarcToKoha.t b/t/db_dependent/Biblio/TransformMarcToKoha.t
index 5062ed7c48..942c8a14d3 100755
--- a/t/db_dependent/Biblio/TransformMarcToKoha.t
+++ b/t/db_dependent/Biblio/TransformMarcToKoha.t
@@ -94,7 +94,7 @@ subtest 'Multiple mappings for one kohafield' => sub {
 };
 
 subtest 'Testing _adjust_pubyear' => sub {
-    plan tests => 12;
+    plan tests => 17;
 
     is( C4::Biblio::_adjust_pubyear('2004 c2000 2007'), 2000, 'First cYEAR' );
     is( C4::Biblio::_adjust_pubyear('2004 2000 2007'), 2004, 'First year' );
@@ -104,7 +104,12 @@ subtest 'Testing _adjust_pubyear' => sub {
     is( C4::Biblio::_adjust_pubyear('1...'), 1000, '1... on its own' );
     is( C4::Biblio::_adjust_pubyear('12?? 13xx'), 1200, '12?? first' );
     is( C4::Biblio::_adjust_pubyear('12? 1x'), undef, 'Too short return nothing as data must be int' );
-    is( C4::Biblio::_adjust_pubyear('198-'), undef, 'Missing question mark, nothing is returned as data must be int' );
+    is( C4::Biblio::_adjust_pubyear('198-'), '1980', '198-' );
+    is( C4::Biblio::_adjust_pubyear('19--'), '1900', '19--' );
+    is( C4::Biblio::_adjust_pubyear('19-'),  '1900', '19-' );
+    is( C4::Biblio::_adjust_pubyear('2---'), '2000', '2---' );
+    is( C4::Biblio::_adjust_pubyear('2--'),  '2000', '2--' );
+    is( C4::Biblio::_adjust_pubyear('2-'),   '2000', '2-' );
     is( C4::Biblio::_adjust_pubyear('198-?'), '1980', '198-?' );
     is( C4::Biblio::_adjust_pubyear('1981-'), '1981', 'Date range returns first date' );
     is( C4::Biblio::_adjust_pubyear('broken'), undef, 'Non-matchign data returns nothing as the field must be int' );