diff --git a/src/Behat/MinkExtension/Context/MinkDictionary.php b/src/Behat/MinkExtension/Context/MinkDictionary.php
index ebde70f..908298a 100644
--- a/src/Behat/MinkExtension/Context/MinkDictionary.php
+++ b/src/Behat/MinkExtension/Context/MinkDictionary.php
@@ -270,7 +270,10 @@ trait MinkDictionary
         $field = $this->fixStepArgument($field);
 
         if ($this->getMinkParameter('files_path')) {
-            $path = rtrim($this->getMinkParameter('files_path'), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR.$path;
+            $fullPath = rtrim(realpath($this->getMinkParameter('files_path')), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR.$path;
+            if (is_file($fullPath)) {
+                $path = $fullPath;
+            }
         }
 
         $this->getSession()->getPage()->attachFileToField($field, $path);