diff --git a/Marlin/language.h b/Marlin/language.h
index 4254f449383c5dcdab52c9f1568ddedb521fe58f..ef89f89db67790a34aad3e5b59438e993d5235ed 100644
--- a/Marlin/language.h
+++ b/Marlin/language.h
@@ -276,7 +276,7 @@
 
 #include INCLUDE_LANGUAGE
 
-#if DISABLED(SIMULATE_ROMFONT) && DISABLED(DISPLAY_CHARSET_ISO10646_1) && DISABLED(DISPLAY_CHARSET_ISO10646_5) && DISABLED(DISPLAY_CHARSET_ISO10646_KANA) && DISABLED(DISPLAY_CHARSET_ISO10646_GREEK) && DISABLED(DISPLAY_CHARSET_ISO10646_CN)
+#if DISABLED(SIMULATE_ROMFONT) && DISABLED(DISPLAY_CHARSET_ISO10646_1) && DISABLED(DISPLAY_CHARSET_ISO10646_5) && DISABLED(DISPLAY_CHARSET_ISO10646_KANA) && DISABLED(DISPLAY_CHARSET_ISO10646_GREEK) && DISABLED(DISPLAY_CHARSET_ISO10646_CN) && DISABLED(DISPLAY_CHARSET_ISO10646_TR)
   #define DISPLAY_CHARSET_ISO10646_1 // use the better font on full graphic displays.
 #endif
 
diff --git a/Marlin/utf_mapper.h b/Marlin/utf_mapper.h
index bba85e180d06b7ab6ccd1e0a97454900bfe2ee7f..d814e46711006713dba6da1e5888ce52f3339be6 100644
--- a/Marlin/utf_mapper.h
+++ b/Marlin/utf_mapper.h
@@ -40,6 +40,8 @@
     #define MAPPER_ONE_TO_ONE
   #elif ENABLED(DISPLAY_CHARSET_ISO10646_GREEK)
     #define MAPPER_ONE_TO_ONE
+  #elif ENABLED(DISPLAY_CHARSET_ISO10646_TR)
+    #define MAPPER_ONE_TO_ONE
   #endif
 #else // SIMULATE_ROMFONT
   #if DISPLAY_CHARSET_HD44780 == JAPANESE