diff --git a/modules/dialog/dialog.c b/modules/dialog/dialog.c
index c18671f9da6..519e90c5dc4 100644
--- a/modules/dialog/dialog.c
+++ b/modules/dialog/dialog.c
@@ -1885,7 +1885,7 @@ int pv_set_dlg_deldelay(struct sip_msg *msg, pv_param_t *param,
 }
 
 
-#define DLG_CTX_JSON_BUFF_SIZE 8192
+#define DLG_CTX_JSON_BUFF_SIZE 32768
 #define DEC_AND_CHECK_LEN(_curr,_size)			\
 	 do {						\
 		_curr-=_size; 				\