diff --git a/workflow/tests/test_pool_and_psuedoreplicate.py b/workflow/tests/test_pool_and_psuedoreplicate.py
index c7bb64eba50a3f5a63af381c81d5be00d951f565..f251e888f906de1c7e360502cadf45c8c9b85a3c 100644
--- a/workflow/tests/test_pool_and_psuedoreplicate.py
+++ b/workflow/tests/test_pool_and_psuedoreplicate.py
@@ -70,7 +70,7 @@ def test_single_rep(design_experiment_2):
     shutil.copy(test_design_path + 'A_1.tagAlign.gz', cwd)
     shutil.copy(test_design_path + 'B_1.tagAlign.gz', cwd)
     single_rep = pool_and_psuedoreplicate.generate_design('false', 1.2, design_experiment_2, cwd, 1, 1)
-    assert single_rep.shape[0] == 5
+    assert single_rep.shape[0] == 4
 
 @pytest.mark.singleend
 def test_pool_and_psuedoreplicate_singleend():