diff --git a/i18n/nyo.json b/i18n/nyo.json
index c3ddebc5..22e9266b 100644
--- a/i18n/nyo.json
+++ b/i18n/nyo.json
@@ -5,5 +5,6 @@
 		]
 	},
 	"uls-plang-title-languages": "Endimi",
+	"ext-uls-undo-language-tooltip-text": "Orulimi ruhindwirwe kuruga $1",
 	"ext-uls-compact-link-count": "{{PLURAL:$1|Orundi rumu|Ezindi $1}}"
 }
diff --git a/i18n/ttj.json b/i18n/ttj.json
index c3ddebc5..7c81c6dc 100644
--- a/i18n/ttj.json
+++ b/i18n/ttj.json
@@ -5,5 +5,6 @@
 		]
 	},
 	"uls-plang-title-languages": "Endimi",
+	"ext-uls-undo-language-tooltip-text": "Orulimi ruhingisiibwe kuruga $1",
 	"ext-uls-compact-link-count": "{{PLURAL:$1|Orundi rumu|Ezindi $1}}"
 }