diff --git a/src/Whoops/Exception/Frame.php b/src/Whoops/Exception/Frame.php
index 688fa1c..a97268e 100644
--- a/src/Whoops/Exception/Frame.php
+++ b/src/Whoops/Exception/Frame.php
@@ -186,10 +186,7 @@ class Frame implements Serializable
                 $lines = array_slice($lines, $start, $length, true);
             }
 
-            return array_map(function($line)
-            {
-                return empty($line) ? ' ' : $line;
-            }, $lines);
+            return $lines;
         }
     }