diff --git a/src/db-engines/post-by-app.js b/src/db-engines/post-by-app.js
index cd4d1da..b287967 100644
--- a/src/db-engines/post-by-app.js
+++ b/src/db-engines/post-by-app.js
@@ -11,21 +11,24 @@ module.exports = async function (op, timestamp) {
 		
         try {
             var post_app = JSON.parse(op[1].json_metadata).app;
-	
-            if (post_app.indexOf(config.target) > -1) {
+            
+            if (!post_app) {
+                
+                return;
+                
+            } else if (post_app && post_app.indexOf(config.target) > -1) {
                 
                 try {
                     var sql = 'CALL new_post(?,?,?,?,?,?,?)';
 					
                     var details =  [ op[1].author, op[1].permlink, op[1].parent_permlink, op[1].title, op[1].body, ('/@' + op[1].author + '/' + op[1].permlink), timestamp ];
-					
+			
                     await pool.query(sql, details);
 					
-                }
-                catch (err) {
+                } catch (err) {
                     console.log(err);
                 }
-			
+                
             }
         }
         catch (err) {