diff --git a/openrtx/src/ui/ui.c b/openrtx/src/ui/ui.c
index 141f6f14..4eb4f858 100644
--- a/openrtx/src/ui/ui.c
+++ b/openrtx/src/ui/ui.c
@@ -203,7 +203,7 @@ const char *symbols_ITU_T_E161[] =
 
 const char *symbols_ITU_T_E161_callsign[] =
 {
-    "0",
+    "0 ",
     "1",
     "ABC2",
     "DEF3",