diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 39b835d7c4455e0605795aa38936d640427f62f2..cb69660d0779721ba45788114702adf172651344 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1126,7 +1126,7 @@ static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size)
 		case 'Y':
 		case 'y':
 		case '1':
-			if (nn->nfsd_serv)
+			if (!nn->nfsd_serv)
 				return -EBUSY;
 			nfsd4_end_grace(nn);
 			break;