diff --git a/include/libzfs.h b/include/libzfs.h
index 7c06ebb104..98942b4198 100644
--- a/include/libzfs.h
+++ b/include/libzfs.h
@@ -258,10 +258,10 @@ extern int zpool_add(zpool_handle_t *, nvlist_t *);
 
 typedef struct splitflags {
 	/* do not split, but return the config that would be split off */
-	int dryrun : 1;
+	unsigned int dryrun : 1;
 
 	/* after splitting, import the pool */
-	int import : 1;
+	unsigned int import : 1;
 	int name_flags;
 } splitflags_t;
 
@@ -650,13 +650,13 @@ extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
 
 typedef struct renameflags {
 	/* recursive rename */
-	int recursive : 1;
+	unsigned int recursive : 1;
 
 	/* don't unmount file systems */
-	int nounmount : 1;
+	unsigned int nounmount : 1;
 
 	/* force unmount file systems */
-	int forceunmount : 1;
+	unsigned int forceunmount : 1;
 } renameflags_t;
 
 extern int zfs_rename(zfs_handle_t *, const char *, renameflags_t);
diff --git a/lib/libzfs/libzfs_pool.c b/lib/libzfs/libzfs_pool.c
index e2912cdb91..e43ebb15c6 100644
--- a/lib/libzfs/libzfs_pool.c
+++ b/lib/libzfs/libzfs_pool.c
@@ -59,8 +59,8 @@
 static boolean_t zpool_vdev_is_interior(const char *name);
 
 typedef struct prop_flags {
-	int create:1;	/* Validate property on creation */
-	int import:1;	/* Validate property on import */
+	unsigned int create:1;	/* Validate property on creation */
+	unsigned int import:1;	/* Validate property on import */
 } prop_flags_t;
 
 /*