diff --git a/.gitmodules b/.gitmodules
index 6b4cf1a33..1fefc0b1a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,6 @@
   path = extensions-builtin/sd-webui-agent-scheduler
   url = https://github.com/ArtVentureX/sd-webui-agent-scheduler
   ignore = dirty
+[submodule "extensions-builtin/sdnext-modernui"]
+	path = extensions-builtin/sdnext-modernui
+	url = https://github.com/BinaryQuantumSoul/sdnext-modernui
diff --git a/extensions-builtin/sdnext-modernui b/extensions-builtin/sdnext-modernui
new file mode 160000
index 000000000..1d79f89f8
--- /dev/null
+++ b/extensions-builtin/sdnext-modernui
@@ -0,0 +1 @@
+Subproject commit 1d79f89f8a39bb82d0ccfa86a332f940ff1df118