1 files changed, 3 insertions, 1 deletions
diff --git a/src/numeric.c b/src/numeric.c
index 4128ea3a6..b6a38dace 100644
--- a/src/numeric.c
+++ b/src/numeric.c
@@ -207,12 +207,14 @@ flo_to_s(mrb_state *mrb, mrb_value flt)
     char fmt[] = "%." MRB_STRINGIZE(FLO_TO_STR_PREC) "g";
     mrb_value str = mrb_float_to_str(mrb, flt, fmt);
     mrb_int len;
+    char *p;
     char *begp;
+    char *endp;
 
     insert_dot_zero:
     begp = RSTRING_PTR(str);
     len = RSTRING_LEN(str);
-    for (char *p = begp, *endp = p + len; p < endp; ++p) {
+    for (p = begp, endp = p + len; p < endp; ++p) {
       if (*p == '.') {
         return str;
       }