1 files changed, 4 insertions, 0 deletions
diff --git a/hw/mac_dbdma.h b/hw/mac_dbdma.h
index bfdb0ddc68..e596837f46 100644
--- a/hw/mac_dbdma.h
+++ b/hw/mac_dbdma.h
@@ -19,6 +19,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#ifndef HW_MAC_DBDMA_H
+#define HW_MAC_DBDMA_H 1
 
 #include "memory.h"
 
@@ -42,3 +44,5 @@ void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
                             DBDMA_rw rw, DBDMA_flush flush,
                             void *opaque);
 void* DBDMA_init (MemoryRegion **dbdma_mem);
+
+#endif