diff --git a/src/830into.js b/src/830into.js
index 93428a74bc..1c0362ba3c 100755
--- a/src/830into.js
+++ b/src/830into.js
@@ -257,6 +257,10 @@ alasql.into.CSV = function (filename, opts, data, columns, cb) {
 			columns
 				.map(function (col) {
 					var s = d[col.columnid];
+					// Missing properties and null values both represent empty CSV fields.
+					if (s == null) {
+						s = '';
+					}
 					// escape the character wherever it appears in the field
 					if (opt.quote !== '') {
 						s = (s + '').replace(new RegExp('\\' + opt.quote, 'g'), opt.quote + opt.quote);
diff --git a/test/test-csv-missing-properties.js b/test/test-csv-missing-properties.js
new file mode 100644
index 0000000000..d2707c2c21
--- /dev/null
+++ b/test/test-csv-missing-properties.js
@@ -0,0 +1,27 @@
+if (typeof exports === 'object') {
+	var assert = require('assert');
+	var alasql = require('..');
+}
+
+describe('Test 369 - CSV export with missing properties', function () {
+	it('A) Export missing properties as empty fields', function () {
+		var data = [
+			{a: 1, b: 2, c: 3, d: 4},
+			{a: 5, b: 6},
+		];
+		var res = alasql('SELECT * INTO CSV({headers:true, utf8Bom:false}) FROM ?', [data]);
+		assert.deepStrictEqual(res, '"a";"b";"c";"d"\r\n1;2;3;4\r\n5;6;;\r\n');
+	});
+
+	it('B) Preserve an explicit undefined string', function () {
+		var data = [{a: 'undefined'}];
+		var res = alasql('SELECT * INTO CSV({headers:true, utf8Bom:false}) FROM ?', [data]);
+		assert.deepStrictEqual(res, '"a"\r\n"undefined"\r\n');
+	});
+
+	it('C) Export null as empty but preserve an explicit null string', function () {
+		var data = [{a: null, b: 'null'}];
+		var res = alasql('SELECT * INTO CSV({headers:true, utf8Bom:false}) FROM ?', [data]);
+		assert.deepStrictEqual(res, '"a";"b"\r\n;"null"\r\n');
+	});
+});