diff --git a/.gitmodules b/.gitmodules
index 5a79b8d175516..f28242d7e1a42 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -98,6 +98,10 @@
 	path = mod/diary
 	url = https://github.com/drachels/moodle-mod_diary
 	branch = master
+[submodule "mod/oublog"]
+	path = mod/oublog
+	url = https://github.com/moodleou/moodle-mod_oublog
+	branch = MOODLE_404_STABLE
 [submodule "mod/questionnaire"]
 	path = mod/questionnaire
 	url = https://github.com/PoetOS/moodle-mod_questionnaire
diff --git a/mod/oublog b/mod/oublog
new file mode 160000
index 0000000000000..6dd545f4aae50
--- /dev/null
+++ b/mod/oublog
@@ -0,0 +1 @@
+Subproject commit 6dd545f4aae50e28d22def5caf1ce83661579af8