diff --git a/workflow/tests/test_trimData.py b/workflow/tests/test_trimData.py
index d766854ec538a1d2f7a7413d8636a736cae0fdc1..6538a0081aaea69c5814d479751455abd879f4bc 100644
--- a/workflow/tests/test_trimData.py
+++ b/workflow/tests/test_trimData.py
@@ -12,6 +12,7 @@ test_output_path = os.path.dirname(os.path.abspath(__file__)) + \
 def test_trimData_se():
     assert os.path.exists(os.path.join(test_output_path, '16-1ZX4_trimmed.fq.gz'))
 
+@pytest.mark.trimData
 def test_trimData_pe():
     assert os.path.exists(os.path.join(test_output_path, 'Q-Y5JA_R1_val_1.fq.gz'))
     assert os.path.exists(os.path.join(test_output_path, 'Q-Y5JA_R2_val_2.fq.gz'))
\ No newline at end of file