diff --git a/src/Monolog/Formatter/LineFormatter.php b/src/Monolog/Formatter/LineFormatter.php
index 5a65b4c0..3cce7f7c 100644
--- a/src/Monolog/Formatter/LineFormatter.php
+++ b/src/Monolog/Formatter/LineFormatter.php
@@ -130,7 +130,7 @@ class LineFormatter extends NormalizerFormatter
 
         $str = '[object] ('.get_class($e).'(code: '.$e->getCode().'): '.$e->getMessage().' at '.$e->getFile().':'.$e->getLine().$previousText.')';
         if ($this->includeStacktraces) {
-            $str .= "\n[stacktrace]\n".$e->getTraceAsString();
+            $str .= "\n[stacktrace]\n".$e->getTraceAsString()."\n";
         }
 
         return $str;
@@ -152,6 +152,10 @@ class LineFormatter extends NormalizerFormatter
     protected function replaceNewlines($str)
     {
         if ($this->allowInlineLineBreaks) {
+            if (0 === strpos($str, '{')) {
+                return str_replace(['\r', '\n'], ["\r", "\n"], $str);
+            }
+
             return $str;
         }
 
diff --git a/tests/Monolog/Formatter/LineFormatterTest.php b/tests/Monolog/Formatter/LineFormatterTest.php
index cbbbc666..4fdcd8c4 100644
--- a/tests/Monolog/Formatter/LineFormatterTest.php
+++ b/tests/Monolog/Formatter/LineFormatterTest.php
@@ -137,6 +137,24 @@ class LineFormatterTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('['.date('Y-m-d').'] core.CRITICAL: foobar {"exception":"[object] (RuntimeException(code: 0): Foo at '.substr($path, 1, -1).':'.(__LINE__ - 8).')"} []'."\n", $message);
     }
 
+    public function testDefFormatWithExceptionAndStacktrace()
+    {
+        $formatter = new LineFormatter(null, 'Y-m-d');
+        $formatter->includeStacktraces();
+        $message = $formatter->format([
+            'level_name' => 'CRITICAL',
+            'channel' => 'core',
+            'context' => ['exception' => new \RuntimeException('Foo')],
+            'datetime' => new \DateTimeImmutable,
+            'extra' => [],
+            'message' => 'foobar',
+        ]);
+
+        $path = str_replace('\\/', '/', json_encode(__FILE__));
+
+        $this->assertRegexp('{^\['.date('Y-m-d').'] core\.CRITICAL: foobar \{"exception":"\[object] \(RuntimeException\(code: 0\): Foo at '.preg_quote(substr($path, 1, -1)).':'.(__LINE__ - 8).'\)\n\[stacktrace]\n#0}', $message);
+    }
+
     public function testDefFormatWithPreviousException()
     {
         $formatter = new LineFormatter(null, 'Y-m-d');