diff --git a/ext/strscan/strscan.c b/ext/strscan/strscan.c
index 177cfddc15..a62616ceea 100644
--- a/ext/strscan/strscan.c
+++ b/ext/strscan/strscan.c
@@ -1186,20 +1186,20 @@ strscan_inspect(VALUE self)
 static VALUE
 inspect1(struct strscanner *p)
 {
-    char buf[BUFSIZE];
-    char *bp = buf;
+    VALUE str;
     long len;
 
     if (p->curr == 0) return rb_str_new2("");
     if (p->curr > INSPECT_LENGTH) {
-        strcpy(bp, "..."); bp += 3;
-        len = INSPECT_LENGTH;
+	str = rb_str_new_cstr("...");
+	len = INSPECT_LENGTH;
     }
     else {
-        len = p->curr;
+	str = rb_str_new(0, 0);
+	len = p->curr;
     }
-    memcpy(bp, CURPTR(p) - len, len); bp += len;
-    return rb_str_dump(rb_str_new(buf, bp - buf));
+    rb_str_cat2(str, CURPTR(p) - len, len);
+    return rb_str_dump(str);
 }
 
 static VALUE