diff --git a/panels/printers/authentication-dialog.ui b/panels/printers/authentication-dialog.ui
deleted file mode 100644
index c9e9a05b9..000000000
--- a/panels/printers/authentication-dialog.ui
+++ /dev/null
@@ -1,137 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.18.3 -->
-<interface>
-  <requires lib="gtk+" version="3.12"/>
-  <object class="GtkDialog" id="authentication-dialog">
-    <property name="width_request">430</property>
-    <property name="height_request">270</property>
-    <property name="hexpand">True</property>
-    <property name="title" translatable="yes"> </property>
-    <property name="resizable">False</property>
-    <property name="modal">True</property>
-    <property name="destroy_with_parent">True</property>
-    <child>
-      <object class="GtkBox" id="main-vbox">
-        <property name="orientation">vertical</property>
-        <property name="spacing">10</property>
-        <child type="action">
-          <object class="GtkButton" id="button1">
-            <property name="label" translatable="yes">Cancel</property>
-          </object>
-        </child>
-        <child type="action">
-          <object class="GtkButton" id="authentication-button">
-            <property name="label" translatable="yes">Authenticate</property>
-            <property name="sensitive">False</property>
-            <property name="receives_default">True</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkGrid" id="grid1">
-            <property name="margin_start">5</property>
-            <property name="margin_end">5</property>
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <property name="row_spacing">5</property>
-            <property name="column_spacing">15</property>
-            <child>
-              <object class="GtkLabel" id="username-label">
-                <property name="halign">end</property>
-                <property name="xalign">1</property>
-                <property name="label" translatable="yes">Username</property>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">2</property>
-                </layout>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel" id="password-label">
-                <property name="halign">end</property>
-                <property name="xalign">1</property>
-                <property name="label" translatable="yes">Password</property>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">3</property>
-                </layout>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-              </object>
-            </child>
-            <child>
-              <object class="GtkEntry" id="username-entry">
-                <property name="hexpand">True</property>
-                <property name="invisible_char">●</property>
-                <property name="activates_default">True</property>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkEntry" id="password-entry">
-                <property name="hexpand">True</property>
-                <property name="visibility">False</property>
-                <property name="invisible_char">●</property>
-                <property name="activates_default">True</property>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">3</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel" id="authentication-title">
-                <property name="hexpand">True</property>
-                <property name="xalign">0</property>
-                <property name="label" translatable="yes">Authentication Required</property>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">0</property>
-                </layout>
-                <attributes>
-                  <attribute name="weight" value="bold"/>
-                </attributes>
-              </object>
-            </child>
-            <child>
-              <object class="GtkImage" id="image1">
-                <property name="halign">end</property>
-                <property name="valign">start</property>
-                <property name="pixel_size">48</property>
-                <property name="icon_name">dialog-password-symbolic</property>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">0</property>
-                  <property name="height">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel" id="authentication-text">
-                <property name="margin_bottom">15</property>
-                <property name="hexpand">True</property>
-                <property name="xalign">0</property>
-                <property name="wrap">True</property>
-                <property name="max_width_chars">36</property>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">1</property>
-                </layout>
-              </object>
-            </child>
-          </object>
-        </child>
-      </object>
-    </child>
-    <action-widgets>
-      <action-widget response="-6">button1</action-widget>
-      <action-widget response="-5">authentication-button</action-widget>
-    </action-widgets>
-  </object>
-</interface>
diff --git a/panels/printers/meson.build b/panels/printers/meson.build
index 7d1ed9d47..3f50979b4 100644
--- a/panels/printers/meson.build
+++ b/panels/printers/meson.build
@@ -39,7 +39,6 @@ sources = files(
 )
 
 resource_data = files(
-  'authentication-dialog.ui',
   'new-printer-dialog.ui',
   'ppd-selection-dialog.ui',
   'pp-details-dialog.ui',
diff --git a/panels/printers/printers.gresource.xml b/panels/printers/printers.gresource.xml
index 7b216ba7e..cecce1807 100644
--- a/panels/printers/printers.gresource.xml
+++ b/panels/printers/printers.gresource.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
   <gresource prefix="/org/gnome/control-center/printers">
-    <file preprocess="xml-stripblanks">authentication-dialog.ui</file>
     <file preprocess="xml-stripblanks">new-printer-dialog.ui</file>
     <file preprocess="xml-stripblanks">pp-options-dialog.ui</file>
     <file preprocess="xml-stripblanks">ppd-selection-dialog.ui</file>