diff --git a/block/qcow.c b/block/qcow.c
index 635085e..afed18f 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -21,6 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+#include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "block/block_int.h"
 #include "qemu/module.h"