diff --git a/src/fatfs/ccsbcs.c b/src/fatfs/ccsbcs.c
index 20d696ce..11ca7f18 100644
--- a/src/fatfs/ccsbcs.c
+++ b/src/fatfs/ccsbcs.c
@@ -493,9 +493,7 @@ const WCHAR Tbl[] = {	/*  CP1258(0x80-0xFF) to Unicode conversion table */
 #endif
 
 
-#if !_TBLDEF || !_USE_LFN
-#error This file is not needed in current configuration
-#endif
+#if _TBLDEF && _USE_LFN
 
 
 WCHAR ff_convert (	/* Converted character, Returns zero on error */
@@ -599,3 +597,5 @@ WCHAR ff_wtoupper (	/* Upper converted character */
 
 	return tbl_lower[i] ? tbl_upper[i] : chr;
 }
+
+#endif   // #if _TBLDEF && _USE_LFN