diff --git a/include/util/tbuffer.inc b/include/util/tbuffer.inc
index 6db440626f..7d24799115 100644
--- a/include/util/tbuffer.inc
+++ b/include/util/tbuffer.inc
@@ -13,6 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "taoserror.h"
 #include "tcoding.h"
 
 struct SBuffer {