diff --git a/.gitmodules b/.gitmodules
index 084907ad46b2c4d93e5c3c9d4c6f593bdde0e190..17ce384a8e26b31f02b41172bf05b7ed1076f87a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -14,10 +14,6 @@
     path = plugins/VisitorGenerator
     url = https://github.com/piwik/plugin-VisitorGenerator.git
     branch = master
-[submodule "tests/PHPUnit/UI"]
-    path = tests/PHPUnit/UI
-    url = https://github.com/piwik/piwik-ui-tests.git
-    branch = master
 [submodule "plugins/CustomAlerts"]
     path = plugins/CustomAlerts
     url = https://github.com/piwik/plugin-CustomAlerts.git
diff --git a/tests/PHPUnit/UI b/tests/PHPUnit/UI
deleted file mode 160000
index 5d9d1d6691b4f0ebeb0496c3daa077d59200a9dc..0000000000000000000000000000000000000000
--- a/tests/PHPUnit/UI
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 5d9d1d6691b4f0ebeb0496c3daa077d59200a9dc