diff --git a/wave_reader.cpp b/wave_reader.cpp
index 749f953..ac1be9c 100644
--- a/wave_reader.cpp
+++ b/wave_reader.cpp
@@ -30,7 +30,7 @@
     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
     WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
-
+#include <errno.h>
 #include "wave_reader.h"
 #include "error_reporter.h"
 #include <sstream>