diff --git a/tests/test_get_read_orientation.py b/tests/test_get_read_orientation.py
index 1089433..ddd9fb6 100644
--- a/tests/test_get_read_orientation.py
+++ b/tests/test_get_read_orientation.py
@@ -154,7 +154,10 @@ def test_evaluate_paired_unmapped(self, tmpdir):
         CONFIG.args.path_1_processed = FILE_UNMAPPED_PAIRED_1
         CONFIG.args.path_2_processed = FILE_UNMAPPED_PAIRED_2
         CONFIG.args.tmp_dir = tmpdir
-        CONFIG.results.library_source = ResultsSource()
+        CONFIG.results.library_source = ResultsSource(
+            file_1=Source(short_name="hsapiens", taxon_id=9606),
+            file_2=Source(short_name="hsapiens", taxon_id=9606)
+        )
         CONFIG.results.library_type = ResultsType(
             relationship=StatesTypeRelationship.split_mates,
         )
@@ -259,7 +262,7 @@ def test_evaluate_paired_not_mates_unmapped(self, tmpdir):
             )
         CONFIG.results.library_source = ResultsSource(
             file_1=Source(),
-            file_2=Source(),
+            file_2=Source(short_name="hsapiens", taxon_id=9606),
         )
         CONFIG.args.tmp_dir = tmpdir
         MAPPING.mapped = False