diff --git a/setup.cfg b/setup.cfg
index 63cc398dceb4ba74eecc5d6a1c229b453aa06461..31c12f66dd6ef32e7acbf6250f9b17e202cef9a4 100755
--- a/setup.cfg
+++ b/setup.cfg
@@ -7,7 +7,7 @@ max-line-length = 100
 
 [tool:pytest]
 junit_family=legacy
-addopts = --cov-report=html --cov-report=xml --cov PanACoTA --mpl
+addopts = --cov-report=html --cov-report=xml --cov PanACoTA --mpl --cov-append
 # add option for junit tests report --junitxml=junit_tests.xml
 # add option if coverage must be added to previous one --cov-append
 # add option to get report in terminal --cov-report=term