diff --git a/pjsip/include/pjsua-lib/pjsua.h b/pjsip/include/pjsua-lib/pjsua.h
index 77b9329..012f5b1 100644
--- a/pjsip/include/pjsua-lib/pjsua.h
+++ b/pjsip/include/pjsua-lib/pjsua.h
@@ -4379,9 +4379,14 @@
     pj_uint8_t		priority;
 
     /**
+     * Codec description.
+     */
+    pj_str_t		desc;
+
+    /**
      * Internal buffer.
      */
-    char		buf_[32];
+    char		buf_[64];
 
 } pjsua_codec_info;