diff --git a/features/path.feature b/features/path.feature
index d490384..e7abf9b 100644
--- a/features/path.feature
+++ b/features/path.feature
@@ -5,3 +5,8 @@ Feature: Adding an unique path
     When I add the path to the database
     Then the path should be added successfully
 
+  Scenario: Adding an new path with not uniq path
+    Given a path "/media"
+    When I add the path to the database
+    Then the exception should occur
+
diff --git a/features/steps/path_steps.py b/features/steps/path_steps.py
index 891a691..b5efef6 100644
--- a/features/steps/path_steps.py
+++ b/features/steps/path_steps.py
@@ -22,3 +22,7 @@ def path_has_added(context):
     assert context.path.path == context.path_str
     assert context.exception_raised == False
 
+@then('the exception should occur')
+def path_has_not_added(context):
+    assert context.exception_raised == True
+