diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 8815068..e480526 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -34,6 +34,7 @@
  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <linux/slab.h>
 #include <linux/nfs_fs.h>
 #include <linux/nfs4_acl.h>