diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index dc15d248443fd833ae17199a41f28ab6712b5d5c..238d9b3e2252b22c3405291edbffc5df946a4608 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1060,7 +1060,7 @@ static ssize_t bonding_store_primary(struct device *d,
 		goto out;
 	}
 
-	sscanf(buf, "%16s", ifname); /* IFNAMSIZ */
+	sscanf(buf, "%15s", ifname); /* IFNAMSIZ */
 
 	/* check to see if we are clearing primary */
 	if (!strlen(ifname) || buf[0] == '\n') {