diff --git a/src/SlashCommands.js b/src/SlashCommands.js
index 8db9c4400d..f72ba1e005 100644
--- a/src/SlashCommands.js
+++ b/src/SlashCommands.js
@@ -155,7 +155,7 @@ export const CommandMap = {
                             <p>
                                 {_t(
                                     "Please confirm that you'd like to go forward with upgrading this room " +
-                                    "from <oldVersion /> to <newVersion />",
+                                    "from <oldVersion /> to <newVersion />.",
                                     {},
                                     {
                                         oldVersion: () => <code>{room ? room.getVersion() : "1"}</code>,
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index 8e3f0d9f6e..52680ce91d 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -142,7 +142,7 @@
     "Room upgrades are usually recommended when a room version is considered <i>unstable</i>. Unstable room versions might have bugs, missing features, or security vulnerabilities.": "Room upgrades are usually recommended when a room version is considered <i>unstable</i>. Unstable room versions might have bugs, missing features, or security vulnerabilities.",
     "Room upgrades usually only affect <i>server-side</i> processing of the room. If you're having problems with your Riot client, please file an issue with <issueLink />.": "Room upgrades usually only affect <i>server-side</i> processing of the room. If you're having problems with your Riot client, please file an issue with <issueLink />.",
     "<b>Warning</b>: Upgrading a room will <i>not automatically migrate room members to the new version of the room.</i> We'll post a link to the new room in the old version of the room - room members will have to click this link to join the new room.": "<b>Warning</b>: Upgrading a room will <i>not automatically migrate room members to the new version of the room.</i> We'll post a link to the new room in the old version of the room - room members will have to click this link to join the new room.",
-    "Please confirm that you'd like to go forward with upgrading this room from <oldVersion /> to <newVersion />": "Please confirm that you'd like to go forward with upgrading this room from <oldVersion /> to <newVersion />",
+    "Please confirm that you'd like to go forward with upgrading this room from <oldVersion /> to <newVersion />.": "Please confirm that you'd like to go forward with upgrading this room from <oldVersion /> to <newVersion />.",
     "Upgrade": "Upgrade",
     "Changes your display nickname": "Changes your display nickname",
     "Changes your display nickname in the current room only": "Changes your display nickname in the current room only",