diff --git a/operations/add.js b/operations/add.js
index c032944..1418668 100644
--- a/operations/add.js
+++ b/operations/add.js
@@ -1,12 +1,21 @@
 const writeDataJson = require("../helpers/writeDataJson");
 const getAll = require('./getAll');
+const log = require('../utils/log');
 
 function add(arrayName, data) {
     const newData = getAll();
-    newData[arrayName].push(data);
-    writeDataJson(JSON.stringify(newData));
+    if (newData[arrayName] != undefined) {
+        var isArray = newData[arrayName].constructor === Array ? true : false
+        if (isArray) {
+            newData[arrayName].push(data)
+        } else {
+            log(`${arrayName} is not an array.`, "Error", "error");
+         }
+    } else {
+        newData[arrayName] = []
+        newData[arrayName].push(data);
+    }
+    writeDataJson(JSON.stringify(newData, null, 4));
 }
 
-
-module.exports = add;
-
+module.exports = add;
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 9d1931c..54fe658 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
 	"name": "dbcopycat",
-	"version": "0.2.1",
+	"version": "0.3.2",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "dbcopycat",
-			"version": "0.2.1",
+			"version": "0.3.2",
 			"license": "ISC",
 			"dependencies": {
 				"chalk": "^4.1.2",