diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c
index abe91ca..0a5927c 100644
--- a/fs/partitions/sun.c
+++ b/fs/partitions/sun.c
@@ -74,7 +74,7 @@
 	spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect);
 	for (i = 0; i < 8; i++, p++) {
 		unsigned long st_sector;
-		int num_sectors;
+		unsigned int num_sectors;
 
 		st_sector = be32_to_cpu(p->start_cylinder) * spc;
 		num_sectors = be32_to_cpu(p->num_sectors);