diff --git a/Marlin/language_jp.h b/Marlin/language_jp.h
index 2ed063fa5133..519209ae9376 100755
--- a/Marlin/language_jp.h
+++ b/Marlin/language_jp.h
@@ -15,9 +15,9 @@
   #ifndef DISPLAY_CHARSET_HD44780_JAPAN
     #error "Kana requires DISPLAY_CHARSET_HD44780_JAPAN to be set in Configuration.h"
   #endif
-  #include "language_jp_1.h" // HD44780
+  #include "language_jp1.h" // HD44780
 #else
-  #include "language_jp_1.h" // DOGM
+  #include "language_jp1.h" // DOGM
 #endif
 
 #endif // LANGUAGE_JP_H