diff --git a/workflow/tests/test_map_reads.py b/workflow/tests/test_map_reads.py
index bddf8547a4a671cef32593926d52782d7889f11f..ba9587e6800cd02651223fe2d4fe6c5c2b5014f5 100644
--- a/workflow/tests/test_map_reads.py
+++ b/workflow/tests/test_map_reads.py
@@ -6,7 +6,7 @@ import os
 
 def test_map_reads_singleend():
     aligned_reads_report = os.path.dirname(os.path.abspath(__file__)) + \
-                '../output/alignReads/ENCFF646LXU.srt.bam.flagstat.qc'
+                '/../output/alignReads/ENCFF646LXU.srt.bam.flagstat.qc'
     samtools_report = open(aligned_reads_report).readlines()
     assert '80795025' in samtools_report[1]
     assert '80050072' in samtools_report[5]
diff --git a/workflow/tests/test_trim_reads.py b/workflow/tests/test_trim_reads.py
index 0cf4a2940b7211922bdfcb3bfbadc8bc9d177888..faf1062cd57baf06097b45eaf91628bddb46dac7 100644
--- a/workflow/tests/test_trim_reads.py
+++ b/workflow/tests/test_trim_reads.py
@@ -6,11 +6,11 @@ import os
 
 def test_trim_reads_singleend():
     raw_fastq = os.path.dirname(os.path.abspath(__file__)) + \
-                '../../test_data/ENCFF833BLU_fastq.gz'
+                '/../../test_data/ENCFF833BLU_fastq.gz'
     trimmed_fastq = os.path.dirname(os.path.abspath(__file__)) + \
-                '../output/trimReads/ENCFF833BLU_trimmed.fq.gz'
+                '/../output/trimReads/ENCFF833BLU_trimmed.fq.gz'
     trimmed_fastq_report = os.path.dirname(os.path.abspath(__file__)) + \
-                '../output/trimReads/ENCFF833BLU.fastq.gz_trimming_report.txt'
+                '/../output/trimReads/ENCFF833BLU.fastq.gz_trimming_report.txt'
     assert os.path.getsize(raw_fastq) != os.path.getsize(trimmed_fastq)
     assert os.path.getsize(trimmed_fastq) == 2512853101
     assert 'Trimming mode: single-end' in open(trimmed_fastq_report).readlines()[4]