diff --git a/src/kademlia/item.cpp b/src/kademlia/item.cpp
index 2caf61c3d..218678772 100644
--- a/src/kademlia/item.cpp
+++ b/src/kademlia/item.cpp
@@ -40,6 +40,10 @@ POSSIBILITY OF SUCH DAMAGE.
 #include "libtorrent/lazy_entry.hpp"
 #endif
 
+#ifdef TORRENT_USE_VALGRIND
+#include <valgrind/memcheck.h>
+#endif
+
 namespace libtorrent { namespace dht
 {