diff --git a/external/lab-equipment/pH-meter/pH-meter.md b/external/lab-equipment/pH-meter/pH-meter.md
index 71a38651492d9fb240ba97be5c0da9f9bfc89b12..14f719a5cef92ab934037120ed934a0821ad167a 100644
--- a/external/lab-equipment/pH-meter/pH-meter.md
+++ b/external/lab-equipment/pH-meter/pH-meter.md
@@ -79,3 +79,4 @@ The calibration standard solutions are of pH 4, 7 and 10.
     d. If the filling solution is encrusted outside the electrode, remove it by rinsing the electrode with deionized water.
 4. Contact the quality assistant if the logbook is full.
 5. Would you notice any issue with the instrument, [create a ticket](https://service.uni.lu/sp?id=sc_cat_item&sys_id=be0873f8db7070505c72ef3c0b96199f&sysparm_category=af924f17dbac38105c72ef3c0b96194b).
+