diff --git a/src/vector/mobile_guide/index.html b/src/vector/mobile_guide/index.html
index 3960c43912..7e3c8d7a98 100644
--- a/src/vector/mobile_guide/index.html
+++ b/src/vector/mobile_guide/index.html
@@ -326,7 +326,7 @@ body {
               <a class="mx_Button" id="configure_element_button" href="#">Configure</a>
               <p class="mx_Subtext mx_SubtextTop">Tap the button above, or manually enable <em>Use custom server</em> and enter:</p>
               <p class="mx_Subtext">Homeserver: <em id="hs_url"></em></p>
-              <p class="mx_Subtext" id="custom_is">Identity Server: <em id="is_url"></em></p>
+              <p class="mx_Subtext" id="custom_is">Identity server: <em id="is_url"></em></p>
           </div>
         </div>
       </div>