diff --git a/enc/iso_8859_16.c b/enc/iso_8859_16.c
index 1374901e5b..4f768cd9f0 100644
--- a/enc/iso_8859_16.c
+++ b/enc/iso_8859_16.c
@@ -231,7 +231,7 @@ case_map (OnigCaseFoldType* flagP, const OnigUChar** pp,
   OnigCodePoint code;
   OnigUChar *to_start = to;
   OnigCaseFoldType flags = *flagP;
-  
+
   while (*pp<end && to<to_end) {
     code = *(*pp)++;
     if (code==SHARP_s) {