diff --git a/public/locales/en/translation.json b/public/locales/en/translation.json
index dc27716d..5be42dac 100644
--- a/public/locales/en/translation.json
+++ b/public/locales/en/translation.json
@@ -68,7 +68,7 @@
       "failureRateCalculationSuccess": "The failure rate was successfully calculated."
     },
     "faultTree": {
-      "playButtonToolTip": "Recalculate the failure rate after changing the value of the min. operational hours failure rates in the fault tree",
+      "playButtonToolTip": "Recalculate the failure rate after changing the value of the min. operational hours or failure rates in the fault tree",
       "refreshButtonToolTip": "Reset the min. operational hours value"
     },
     "system": {