diff --git a/tools/dht_put.cpp b/tools/dht_put.cpp
index f02e3f668..2b278671c 100644
--- a/tools/dht_put.cpp
+++ b/tools/dht_put.cpp
@@ -36,7 +36,7 @@ POSSIBILITY OF SUCH DAMAGE.
 #include "libtorrent/alert_types.hpp"
 #include "libtorrent/bencode.hpp" // for bencode()
 #include "libtorrent/kademlia/item.hpp" // for sign_mutable_item
-#include "libtorrent/ed25519.h"
+#include "libtorrent/ed25519.hpp"
 
 #include <boost/bind.hpp>