diff --git a/src/async-components/views/dialogs/eventindex/ManageEventIndexDialog.js b/src/async-components/views/dialogs/eventindex/ManageEventIndexDialog.js
index d6e4eb654d..b98fecf22f 100644
--- a/src/async-components/views/dialogs/eventindex/ManageEventIndexDialog.js
+++ b/src/async-components/views/dialogs/eventindex/ManageEventIndexDialog.js
@@ -144,7 +144,8 @@ export default class ManageEventIndexDialog extends React.Component {
                 <div className='mx_SettingsTab_subsectionText'>
                     {_t("Space used:")} {formatBytes(this.state.eventIndexSize, 0)}<br />
                     {_t("Indexed messages:")} {formatCountLong(this.state.eventCount)}<br />
-                    {_t("Number of rooms:")} {formatCountLong(this.state.crawlingRoomsCount)} {_t("of")} {formatCountLong(this.state.roomCount)}<br />
+                    {_t("Number of rooms:")} {formatCountLong(this.state.crawlingRoomsCount)} {_t("of ")}
+                    {formatCountLong(this.state.roomCount)}<br />
                     {crawlerState}<br />
                     <Field
                         id={"crawlerSleepTimeMs"}
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index 522f6e63de..d125d10cfb 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -2095,7 +2095,7 @@
     "Space used:": "Space used:",
     "Indexed messages:": "Indexed messages:",
     "Number of rooms:": "Number of rooms:",
-    "of": "of",
+    "of ": "of ",
     "Message downloading sleep time(ms)": "Message downloading sleep time(ms)",
     "Failed to set direct chat tag": "Failed to set direct chat tag",
     "Failed to remove tag %(tagName)s from room": "Failed to remove tag %(tagName)s from room",