diff --git a/companion/src/generaledit/generalsetup.ui b/companion/src/generaledit/generalsetup.ui
index d4e9bff01..98f9e76dd 100644
--- a/companion/src/generaledit/generalsetup.ui
+++ b/companion/src/generaledit/generalsetup.ui
@@ -1124,7 +1124,7 @@ p, li { white-space: pre-wrap; }
      <item row="19" column="1">
       <widget class="QLineEdit" name="registrationId">
        <property name="inputMask">
-        <string>aaaaaaAA</string>
+        <string>nnnnnnNN</string>
        </property>
        <property name="maxLength">
         <number>8</number>