diff --git a/gazebo/gui/model/ModelTreeWidget.cc b/gazebo/gui/model/ModelTreeWidget.cc
index 860b930a5f..c8504e0ef1 100644
--- a/gazebo/gui/model/ModelTreeWidget.cc
+++ b/gazebo/gui/model/ModelTreeWidget.cc
@@ -14,6 +14,7 @@
  * limitations under the License.
  *
 */
+#include <boost/bind.hpp>
 
 #include "gazebo/common/Events.hh"