diff --git a/openbsc/src/ipaccess/ipaccess-proxy.c b/openbsc/src/ipaccess/ipaccess-proxy.c
index 386081349..77fa575cb 100644
--- a/openbsc/src/ipaccess/ipaccess-proxy.c
+++ b/openbsc/src/ipaccess/ipaccess-proxy.c
@@ -111,7 +111,7 @@ void *tall_bsc_ctx;
 static char *listen_ipaddr;
 static char *bsc_ipaddr;
 
-#define PROXY_ALLOC_SIZE	300
+#define PROXY_ALLOC_SIZE	1200
 
 static const u_int8_t pong[] = { 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_PONG };
 static const u_int8_t id_ack[] = { 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_ACK };