diff --git a/tabellio/config/controlpanel.pt b/tabellio/config/controlpanel.pt
index 1ea2c3a..f9a9a92 100644
--- a/tabellio/config/controlpanel.pt
+++ b/tabellio/config/controlpanel.pt
@@ -370,6 +370,23 @@
                         />
                 </div>
 
+                <div
+                    tal:define="error errors/commission_audio_codes | nothing;
+                                commission_audio_codes python:request.get('commission_audio_codes', view.settings.commission_audio_codes)"
+                    tal:attributes="class python:'field error' if error else 'field'">
+
+                    <label for="commission_audio_codes" i18n:translate="label_commission_audio_codes">Commission Audio Codes</label>
+                    <div tal:content="error" tal:condition="error" />
+                    <textarea
+                        name="commission_audio_codes"
+                        id="commission_audio_codes"
+                        type="text"
+                        rows="20"
+                        cols="80"
+                        tal:content="commission_audio_codes"
+                        >...</textarea>
+                </div>
+
                 <div class="formControls">
                     <input
                         type="submit"
diff --git a/tabellio/config/controlpanel.py b/tabellio/config/controlpanel.py
index 91575e8..3023ba0 100644
--- a/tabellio/config/controlpanel.py
+++ b/tabellio/config/controlpanel.py
@@ -92,6 +92,7 @@ class TabellioControlpanel(BrowserView):
             self.settings.ical_username = form.get('ical_username')
             self.settings.ical_password = form.get('ical_password')
             self.settings.audiofiles_path = form.get('audiofiles_path')
+            self.settings.commission_audio_codes = form.get('commission_audio_codes')
 
         if submitted and not self.errors:
             self._setup()
diff --git a/tabellio/config/interfaces.py b/tabellio/config/interfaces.py
index 823e4c6..ddba358 100644
--- a/tabellio/config/interfaces.py
+++ b/tabellio/config/interfaces.py
@@ -73,3 +73,5 @@ class ITabellioSettings(Interface):
     audiofiles_path = schema.TextLine(
         title=_(u'Audio Files Path'),
         required=False)
+
+    commission_audio_codes = schema.Text(title=_(u'Commission Audio Codes'), required=False)