diff --git a/.gitmodules b/.gitmodules
index 45a5b58fb..fa3128437 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "extensions-builtin/sd-extension-image-browser"]
 	path = extensions-builtin/sd-extension-image-browser
 	url = https://github.com/yfszzx/stable-diffusion-webui-images-browser
+[submodule "extensions-builtin/sd-extension-steps-animation"]
+	path = extensions-builtin/sd-extension-steps-animation
+	url = https://github.com/vladmandic/sd-extension-steps-animation
diff --git a/extensions-builtin/sd-extension-steps-animation b/extensions-builtin/sd-extension-steps-animation
new file mode 160000
index 000000000..763f01ba7
--- /dev/null
+++ b/extensions-builtin/sd-extension-steps-animation
@@ -0,0 +1 @@
+Subproject commit 763f01ba7cf031821c1731b41dfdda5a5277d0ee