diff --git a/src/ppp/nm-pppd-plugin.c b/src/ppp/nm-pppd-plugin.c
index 989f74339d..0919634006 100644
--- a/src/ppp/nm-pppd-plugin.c
+++ b/src/ppp/nm-pppd-plugin.c
@@ -147,7 +147,7 @@ nm_phasechange (void *data, int arg)
 		if (   if_indextoname (index, new_name)
 		    && !nm_streq0 (ifname, new_name)) {
 			g_message ("nm-ppp-plugin: interface name changed from '%s' to '%s'", ifname, new_name);
-			strncpy (ifname, new_name, IF_NAMESIZE);
+			g_strlcpy (ifname, new_name, IF_NAMESIZE);
 		}
 	}
 }