diff --git a/workflow/tests/test_call_peaks_macs.py b/workflow/tests/test_call_peaks_macs.py
index e9a876dd33e6700f63ff413860e4c686ff64bbd6..aba35702c689e3114442648763a855d01611c0cb 100644
--- a/workflow/tests/test_call_peaks_macs.py
+++ b/workflow/tests/test_call_peaks_macs.py
@@ -12,7 +12,7 @@ def test_call_peaks_macs_singleend():
     assert os.path.exists(os.path.join(test_output_path, 'ENCLB144FDT.fc_signal.bw'))
     assert os.path.exists(os.path.join(test_output_path, 'ENCLB144FDT.pvalue_signal.bw'))
     peak_file = test_output_path + 'ENCLB144FDT_peaks.narrowPeak'
-    assert utils.count_lines(peak_file) == '210349'
+    assert utils.count_lines(peak_file) == 210349
 
 
 def test_call_peaks_macs_pairedend():
diff --git a/workflow/tests/test_overlap_peaks.py b/workflow/tests/test_overlap_peaks.py
index 524dd639c57e4a19f283ec5a1b3d4768e1922c9f..db22fb868d474ed5e0ede4c84ae08d874935caf6 100644
--- a/workflow/tests/test_overlap_peaks.py
+++ b/workflow/tests/test_overlap_peaks.py
@@ -35,7 +35,7 @@ def test_check_update_design(design_diff):
 def test_overlap_peaks_singleend():
     assert os.path.exists(os.path.join(test_output_path, 'ENCSR238SGC.rejected.narrowPeak'))
     peak_file = test_output_path + 'ENCSR238SGC.replicated.narrowPeak'
-    assert utils.count_lines(peak_file) == '150096'
+    assert utils.count_lines(peak_file) == 150096
 
 
 def test_call_peaks_macs_pairedend():