diff --git a/.gitmodules b/.gitmodules
index f6124c4..4961d7f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,7 @@
 [submodule "vendor/glfw"]
 	path = vendor/glfw
 	url = https://github.com/gwm17/glfw.git
+[submodule "vendor/imgui"]
+	path = vendor/imgui
+	url = https://github.com/gwm17/imgui.git
+	branch = docking
diff --git a/vendor/imgui b/vendor/imgui
new file mode 160000
index 0000000..7759495
--- /dev/null
+++ b/vendor/imgui
@@ -0,0 +1 @@
+Subproject commit 7759495989c3efa248020e2ad8ecf4424555adf9