diff --git a/tools/test_lsd.c b/tools/test_lsd.c
index c574079d9..4a41a3bdd 100644
--- a/tools/test_lsd.c
+++ b/tools/test_lsd.c
@@ -24,6 +24,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  This file is a test program that plays several sound files and places a call simultatenously.
 */
 
+#include "linphone/core.h"
 #include "linphone/core_utils.h"
 
 static void play_finished(LsdPlayer *p) {