diff --git a/lib/libc/db/hash/hash_page.c b/lib/libc/db/hash/hash_page.c
index f1cde8ff4dc..fa01775fe8b 100644
--- a/lib/libc/db/hash/hash_page.c
+++ b/lib/libc/db/hash/hash_page.c
@@ -854,7 +854,7 @@ open_temp(HTAB *hashp)
 		envtmp = getenv("TMPDIR");
 	len = snprintf(path,
 	    sizeof(path), "%s/_hash.XXXXXX", envtmp ? envtmp : "/tmp");
-	if (len < 0 || len >= sizeof(path)) {
+	if (len < 0 || len >= (int)sizeof(path)) {
 		errno = ENAMETOOLONG;
 		return (-1);
 	}
diff --git a/lib/libc/db/mpool/mpool.c b/lib/libc/db/mpool/mpool.c
index 09f888b7ca1..18bf8daa4c7 100644
--- a/lib/libc/db/mpool/mpool.c
+++ b/lib/libc/db/mpool/mpool.c
@@ -217,7 +217,7 @@ mpool_get(MPOOL *mp, pgno_t pgno,
 
 	/* Read in the contents. */
 	off = mp->pagesize * pgno;
-	if ((nr = pread(mp->fd, bp->page, mp->pagesize, off)) != mp->pagesize) {
+	if ((nr = pread(mp->fd, bp->page, mp->pagesize, off)) != (ssize_t)mp->pagesize) {
 		switch (nr) {
 		case -1:
 			/* errno is set for us by pread(). */
@@ -404,7 +404,7 @@ mpool_write(MPOOL *mp, BKT *bp)
 		(mp->pgout)(mp->pgcookie, bp->pgno, bp->page);
 
 	off = mp->pagesize * bp->pgno;
-	if (pwrite(mp->fd, bp->page, mp->pagesize, off) != mp->pagesize)
+	if (pwrite(mp->fd, bp->page, mp->pagesize, off) != (ssize_t)mp->pagesize)
 		return (RET_ERROR);
 
 	/*