diff --git a/capsul/pipeline/test/test_pipeline_workflow.py b/capsul/pipeline/test/test_pipeline_workflow.py
index 1eaa474ef..8de160bba 100644
--- a/capsul/pipeline/test/test_pipeline_workflow.py
+++ b/capsul/pipeline/test/test_pipeline_workflow.py
@@ -152,9 +152,9 @@ def setUp(self):
         self.pipeline = self.capsul.executable(DummyPipeline)
         self.tmpdir = tempfile.mkdtemp()
         self.pipeline.input = osp.join(self.tmpdir, 'file_in.nii')
-        self.pipeline.output1 = osp.join(self.tmpdir, '/tmp/file_out1.nii')
-        self.pipeline.output2 = osp.join(self.tmpdir, '/tmp/file_out2.nii')
-        self.pipeline.output3 = osp.join(self.tmpdir, '/tmp/file_out3.nii')
+        self.pipeline.output1 = osp.join(self.tmpdir, 'file_out1.nii')
+        self.pipeline.output2 = osp.join(self.tmpdir, 'file_out2.nii')
+        self.pipeline.output3 = osp.join(self.tmpdir, 'file_out3.nii')
 
     def tearDown(self):
         try:
diff --git a/capsul/pipeline/test/test_process_iteration.py b/capsul/pipeline/test/test_process_iteration.py
index ae877fcd7..509643e86 100644
--- a/capsul/pipeline/test/test_process_iteration.py
+++ b/capsul/pipeline/test/test_process_iteration.py
@@ -102,6 +102,7 @@ def setUp(self):
         self.output_file = NamedTemporaryFile()
         self.output_file.close()
         self.pipeline.output_image = self.output_file.name
+        self.temp_files = [self.input_file.name, self.output_file.name]
 
     def tearDown(self):
         if hasattr(self, 'temp_files'):