diff --git a/regparse.c b/regparse.c
index bc1343481d..065e5b214b 100644
--- a/regparse.c
+++ b/regparse.c
@@ -1738,7 +1738,7 @@ add_code_range_to_buf0(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePo
 	int checkdup)
 {
   int r, inc_n, pos;
-  int low, high, bound, x;
+  OnigCodePoint low, high, bound, x;
   OnigCodePoint n, *data;
   BBuf* bbuf;
 
@@ -3239,7 +3239,6 @@ fetch_named_backref_token(OnigCodePoint c, OnigToken* tok, UChar** src,
 			  UChar* end, ScanEnv* env)
 {
   int r, num;
-  OnigEncoding enc = env->enc;
   const OnigSyntaxType* syn = env->syntax;
   UChar* prev;
   UChar* p = *src;