diff --git a/src/libcharon/plugins/dhcp/dhcp_socket.c b/src/libcharon/plugins/dhcp/dhcp_socket.c
index ecd92f2ef..ce3191d53 100644
--- a/src/libcharon/plugins/dhcp/dhcp_socket.c
+++ b/src/libcharon/plugins/dhcp/dhcp_socket.c
@@ -675,7 +675,7 @@ METHOD(dhcp_socket_t, destroy, void,
  */
 static bool bind_to_device(int fd, char *iface)
 {
-	struct ifreq ifreq;
+	struct ifreq ifreq = {};
 
 	if (strlen(iface) > sizeof(ifreq.ifr_name))
 	{