diff --git a/exec/jsdocs.js b/exec/jsdocs.js
index 892c7830fbae357f605c7a861e441ba0e1e3768e..de0c6cfe5df592ff2f4275300d06fbcbdb4232cf 100644
--- a/exec/jsdocs.js
+++ b/exec/jsdocs.js
@@ -191,6 +191,8 @@ log(LOG_ERR, "Prop: "+prop);
 			&& prop!="global"
 			&& prop!="scope"
             ) {
+			if(obj[prop]===null)
+				continue;
 			if(obj[prop].length!=undefined) {
 				if(typeof(obj[prop][0])=="object") {	// array ?
 					document_object(prop_name /*+ "[]"*/,obj[prop][0], "array");