diff --git a/src/components/views/dialogs/UntrustedDeviceDialog.tsx b/src/components/views/dialogs/UntrustedDeviceDialog.tsx
index c2bc92e751..be3eb5c427 100644
--- a/src/components/views/dialogs/UntrustedDeviceDialog.tsx
+++ b/src/components/views/dialogs/UntrustedDeviceDialog.tsx
@@ -56,9 +56,6 @@ const UntrustedDeviceDialog: React.FC<IProps> = ({ device, user, onFinished }) =
                 <p>{askToVerifyText}</p>
             </div>
             <div className="mx_Dialog_buttons">
-                <AccessibleButton kind="primary_outline" onClick={() => onFinished("legacy")}>
-                    {_t("encryption|udd|manual_verification_button")}
-                </AccessibleButton>
                 <AccessibleButton kind="primary_outline" onClick={() => onFinished("sas")}>
                     {_t("encryption|udd|interactive_verification_button")}
                 </AccessibleButton>
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index 3eb092cad2..099ae2b6b5 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -922,7 +922,6 @@
         },
         "udd": {
             "interactive_verification_button": "Interactively verify by emoji",
-            "manual_verification_button": "Manually verify by text",
             "other_ask_verify_text": "Ask this user to verify their session, or manually verify it below.",
             "other_new_session_text": "%(name)s (%(userId)s) signed in to a new session without verifying it:",
             "own_ask_verify_text": "Verify your other session using one of the options below.",