diff --git a/src/calibre/gui2/preferences/server.ui b/src/calibre/gui2/preferences/server.ui
index 85d27eab57..3d912a045d 100644
--- a/src/calibre/gui2/preferences/server.ui
+++ b/src/calibre/gui2/preferences/server.ui
@@ -171,7 +171,7 @@
         <string notr="true">QLabel {color:red}</string>
        </property>
        <property name="text">
-        <string>Password incompatible with some devices</string>
+        <string>Passwords are incompatible with some devices</string>
        </property>
       </widget>
      </item>