diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e9fed03..752b64e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -31,16 +31,15 @@ synchro-et-tests:
       do
         echo "Test de $file"
         stl log clean
-        stl check $file | grep Err && errors=$((errors+1)) # error if err is read in standard output
-        stl check $file | grep "erreur de" && errors=$((errors+1)) # error if err is read in standard output
+        stl check $file | grep -e "Err" -e "erreur de" -e "Aucun fichier" && errors=$((errors+1)) # error if err is read in standard output
       done
       [ $errors -gt 0 ] && false
       for file in $files
       do
         echo "Test supplémentaire de $file"
         stl log clean
-        stl check $file -F &> /dev/null
-        stl check $file -F &> /dev/null
+        stl check -F $file &> /dev/null
+        stl check -F $file &> /dev/null
       done
     - echo "Fin des tests."
 
@@ -58,9 +57,7 @@ deploiement:      # This job runs in the deploy stage.
       do
         echo "Construction de $file"
         stl log clean
-        stl wip $file | grep Err && errors=$((errors+1)) # error if err is read in standard output
-        stl wip $file | grep "erreur de" && errors=$((errors+1)) # error if err is read in standard output
-        stl wip $file | grep "Aucun fichier" && errors=$((errors+1)) # error if err is read in standard output
+        stl wip -F $file | grep -e "Err" -e "erreur de" -e "Aucun fichier" && errors=$((errors+1)) # error if err is read in standard output
       done
       [ $errors -gt 0 ] && false
     - echo "Déploiement terminé."