diff --git a/system/t04_mirror/CreateMirror8Test_gold b/system/t04_mirror/CreateMirror8Test_gold
new file mode 100644
index 00000000..e76510ce
--- /dev/null
+++ b/system/t04_mirror/CreateMirror8Test_gold
@@ -0,0 +1,2 @@
+Downloading http://mirror.yandex.ru/debian/dists/wheezy/Release...
+ERROR: unable to add mirror: mirror with name mirror8 already exists
diff --git a/system/t04_mirror/create.py b/system/t04_mirror/create.py
index 41c44977..be40500f 100644
--- a/system/t04_mirror/create.py
+++ b/system/t04_mirror/create.py
@@ -73,3 +73,12 @@ class CreateMirror7Test(BaseTest):
         self.check_cmd_output("aptly mirror show mirror7", "mirror_show")
 
 
+class CreateMirror8Test(BaseTest):
+    """
+    create mirror: already exists
+    """
+    fixtureCmds = [
+        "aptly mirror create mirror8 http://mirror.yandex.ru/debian/ wheezy main contrib"
+    ]
+    runCmd = "aptly mirror create mirror8 http://mirror.yandex.ru/debian/ wheezy main contrib"
+    expectedCode = 1