diff --git a/src/CsvFile.php b/src/CsvFile.php
index ee9892e..d0a0ecc 100644
--- a/src/CsvFile.php
+++ b/src/CsvFile.php
@@ -405,12 +405,12 @@ public function validateLineBreak()
                 Exception::INVALID_PARAM_STR
             );
         }
-        if (in_array($lineBreak, ["\r\n", "\n"])) {
+        if (in_array($lineBreak, ["\r\n", "\n", "\r"])) {
             return $lineBreak;
         }
 
         throw new InvalidArgumentException(
-            "Invalid line break. Please use unix \\n or win \\r\\n line breaks.",
+            "Invalid line break. Please use unix \\n or win \\r\\n or Mac \\r line breaks.",
             Exception::INVALID_PARAM,
             null,
             Exception::INVALID_PARAM_STR
diff --git a/tests/CsvFileTest.php b/tests/CsvFileTest.php
index 050dab3..7fec707 100644
--- a/tests/CsvFileTest.php
+++ b/tests/CsvFileTest.php
@@ -172,24 +172,7 @@ public function validLineBreaksData()
             ['test-input.win.csv', "\r\n", '\r\n'],
             ['escaping.csv', "\n", '\n'],
             ['just-header.csv', "\n", '\n'], // default
-        ];
-    }
-
-    /**
-     * @expectedException \Keboola\Csv\InvalidArgumentException
-     * @dataProvider invalidLineBreaksData
-     * @param string $file
-     */
-    public function testInvalidLineBreak($file)
-    {
-        $csvFile = new CsvFile(__DIR__ . '/data/' . $file);
-        $csvFile->validateLineBreak();
-    }
-
-    public function invalidLineBreaksData()
-    {
-        return [
-            ['test-input.mac.csv'],
+            ['test-input.mac.csv', "\r", '\r']
         ];
     }