diff --git a/src/blackgui/components/mappingcomponent.ui b/src/blackgui/components/mappingcomponent.ui
index 3ed263d9e..b74486181 100644
--- a/src/blackgui/components/mappingcomponent.ui
+++ b/src/blackgui/components/mappingcomponent.ui
@@ -154,7 +154,7 @@
    <item row="2" column="2">
     <widget class="QLineEdit" name="le_Callsign">
      <property name="maxLength">
-      <number>5</number>
+      <number>15</number>
      </property>
      <property name="readOnly">
       <bool>true</bool>