diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ed0077b62ea6c680cdc8a5103af9bde82ec873c5..57dce3e715ba8db1071766feb94f496194629a22 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -18,6 +18,8 @@ stages:
 - test
 
 before_script:
+- uname -a
+- apt-get update && apt install -y libgl1-mesa-glx
 - pip install -e .[dev]
 
 linting:
diff --git a/mseedpeek/mseedpeek.py b/mseedpeek/mseedpeek.py
index d820daf24fb851a5f01810ca10480a6e845ce2ac..15572eb245bc1900cdf46f9e32f0f9a6d93d545b 100644
--- a/mseedpeek/mseedpeek.py
+++ b/mseedpeek/mseedpeek.py
@@ -140,9 +140,6 @@ from glob import glob
 from operator import mod
 from PySide2 import QtCore, QtGui, QtWidgets
 
-#from libtrace import *
-#from mseedInfo import *
-
 from mseedpeek.libtrace import *
 from mseedpeek.mseedInfo import *