diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..c02c831d0
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "submodules/dlg"]
+	path = submodules/dlg
+	url = https://github.com/nyorain/dlg.git
diff --git a/submodules/dlg b/submodules/dlg
new file mode 160000
index 000000000..a48976146
--- /dev/null
+++ b/submodules/dlg
@@ -0,0 +1 @@
+Subproject commit a4897614699fb8e76f23a2d50a63b4d674e39f90