diff --git a/wpa_supplicant/ctrl_iface_unix.c b/wpa_supplicant/ctrl_iface_unix.c
index 8fb217da4..d44313c23 100644
--- a/wpa_supplicant/ctrl_iface_unix.c
+++ b/wpa_supplicant/ctrl_iface_unix.c
@@ -800,7 +800,7 @@ static void wpa_supplicant_global_ctrl_iface_receive(int sock, void *eloop_ctx,
 {
 	struct wpa_global *global = eloop_ctx;
 	struct ctrl_iface_global_priv *priv = sock_ctx;
-	char buf[256];
+	char buf[4096];
 	int res;
 	struct sockaddr_un from;
 	socklen_t fromlen = sizeof(from);