diff --git a/bencode.cpp b/bencode.cpp
index 79a7316..391785a 100644
--- a/bencode.cpp
+++ b/bencode.cpp
@@ -206,7 +206,7 @@ size_t bencode_path2list(const char *pathname, FILE *fp)
   if( bencode_begin_list(fp) != 1 ) return 0;
   
   for(; *p;){
-    pn = strchr(p, PATH_SP);
+    pn = const_cast<char *>(strchr(p, PATH_SP));
     if( pn ){
       if( bencode_buf(p, pn - p, fp) != 1) return 0;
       p = pn + 1;