diff --git a/ubitx_ui.cpp b/ubitx_ui.cpp
index 8a26b59..30bbb84 100644
--- a/ubitx_ui.cpp
+++ b/ubitx_ui.cpp
@@ -105,7 +105,7 @@ constexpr Button btn_set[BUTTON_TOTAL] PROGMEM = {
   {LAYOUT_BUTTON_X + 0*LAYOUT_BUTTON_PITCH_X, LAYOUT_BUTTON_Y + 2*LAYOUT_BUTTON_PITCH_Y, LAYOUT_BUTTON_WIDTH, LAYOUT_BUTTON_HEIGHT, BUTTON_15 ,  "15", '5'},
   {LAYOUT_BUTTON_X + 1*LAYOUT_BUTTON_PITCH_X, LAYOUT_BUTTON_Y + 2*LAYOUT_BUTTON_PITCH_Y, LAYOUT_BUTTON_WIDTH, LAYOUT_BUTTON_HEIGHT, BUTTON_10 ,  "10", '1'},
   {LAYOUT_BUTTON_X + 2*LAYOUT_BUTTON_PITCH_X, LAYOUT_BUTTON_Y + 2*LAYOUT_BUTTON_PITCH_Y, LAYOUT_BUTTON_WIDTH, LAYOUT_BUTTON_HEIGHT, BUTTON_BLANK_1, "", '\0'},
-  {LAYOUT_BUTTON_X + 3*LAYOUT_BUTTON_PITCH_X, LAYOUT_BUTTON_Y + 2*LAYOUT_BUTTON_PITCH_Y, LAYOUT_BUTTON_WIDTH, LAYOUT_BUTTON_HEIGHT, BUTTON_MNU, "MNU", 'M'},
+  {LAYOUT_BUTTON_X + 3*LAYOUT_BUTTON_PITCH_X, LAYOUT_BUTTON_Y + 2*LAYOUT_BUTTON_PITCH_Y, LAYOUT_BUTTON_WIDTH, LAYOUT_BUTTON_HEIGHT, BUTTON_MNU, "\x7F", 'M'},
   {LAYOUT_BUTTON_X + 4*LAYOUT_BUTTON_PITCH_X, LAYOUT_BUTTON_Y + 2*LAYOUT_BUTTON_PITCH_Y, LAYOUT_BUTTON_WIDTH, LAYOUT_BUTTON_HEIGHT, BUTTON_FRQ, "FRQ", 'F'},
 };