diff --git a/src/locale/messages.en.json b/src/locale/messages.en.json
index 8dbb4ec8b3a22d054c2376f23e7730b18db193f6..c264bcf874dec3b2b9f38109cd6095907bce1bb5 100755
--- a/src/locale/messages.en.json
+++ b/src/locale/messages.en.json
@@ -380,6 +380,7 @@
     "INFO_LIB_TOTAL": "Total",
     "INFO_LIB_V_GUIDETECH": "Technical guide velocity",
     "INFO_LIB_V": "Average velocity",
+    "INFO_LIB_KS": "Equivalent strickler",
     "INFO_LIB_VDEB": "Conveyance velocity",
     "INFO_LIB_VMAX": "Maximal velocity",
     "INFO_LIB_VG": "Averaged velocity between blocks",
diff --git a/src/locale/messages.fr.json b/src/locale/messages.fr.json
index 5b08c183912b0b8d910cb9ca211091274e136dee..af0f87b73e26de3d744802f8fa24921658bfd4db 100755
--- a/src/locale/messages.fr.json
+++ b/src/locale/messages.fr.json
@@ -381,6 +381,7 @@
     "INFO_LIB_TOTAL": "Total",
     "INFO_LIB_V_GUIDETECH": "Vitesse Guide technique",
     "INFO_LIB_V": "Vitesse moyenne",
+    "INFO_LIB_KS": "Strickler équivalent",
     "INFO_LIB_VDEB": "Vitesse débitante",
     "INFO_LIB_VMAX": "Vitesse maximale",
     "INFO_LIB_VG": "Vitesse moyenne entre les blocs",