diff --git a/src/components/views/settings/DevicesPanel.js b/src/components/views/settings/DevicesPanel.js
index 61e7724a6f..e097ef9e47 100644
--- a/src/components/views/settings/DevicesPanel.js
+++ b/src/components/views/settings/DevicesPanel.js
@@ -124,16 +124,21 @@ export default class DevicesPanel extends React.Component {
             // pop up an interactive auth dialog
             const InteractiveAuthDialog = sdk.getComponent("dialogs.InteractiveAuthDialog");
 
+            const numDevices = this.state.selectedDevices.length;
             const dialogAesthetics = {
                 [SSOAuthEntry.PHASE_PREAUTH]: {
                     title: _t("Use Single Sign On to continue"),
-                    body: _t("Confirm deleting these sessions by using Single Sign On to prove your identity."),
+                    body: _t("Confirm deleting these sessions by using Single Sign On to prove your identity.", {
+                        count: numDevices,
+                    }),
                     continueText: _t("Single Sign On"),
                     continueKind: "primary",
                 },
                 [SSOAuthEntry.PHASE_POSTAUTH]: {
                     title: _t("Confirm deleting these sessions"),
-                    body: _t("Click the button below to confirm deleting these sessions."),
+                    body: _t("Click the button below to confirm deleting these sessions.", {
+                        count: numDevices,
+                    }),
                     continueText: _t("Delete sessions"),
                     continueKind: "danger",
                 },
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index b7ad92757a..4a2edf66a6 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -610,9 +610,11 @@
     "up to date": "up to date",
     "Your homeserver does not support session management.": "Your homeserver does not support session management.",
     "Unable to load session list": "Unable to load session list",
-    "Confirm deleting these sessions by using Single Sign On to prove your identity.": "Confirm deleting these sessions by using Single Sign On to prove your identity.",
+    "Confirm deleting these sessions by using Single Sign On to prove your identity.|other": "Confirm deleting these sessions by using Single Sign On to prove your identity.",
+    "Confirm deleting these sessions by using Single Sign On to prove your identity.|one": "Confirm deleting this session by using Single Sign On to prove your identity.",
     "Confirm deleting these sessions": "Confirm deleting these sessions",
-    "Click the button below to confirm deleting these sessions.": "Click the button below to confirm deleting these sessions.",
+    "Click the button below to confirm deleting these sessions.|other": "Click the button below to confirm deleting these sessions.",
+    "Click the button below to confirm deleting these sessions.|one": "Click the button below to confirm deleting this session.",
     "Delete sessions": "Delete sessions",
     "Authentication": "Authentication",
     "Delete %(count)s sessions|other": "Delete %(count)s sessions",