diff --git a/.gitmodules b/.gitmodules
index 712087f..37d7187 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,6 @@
 [submodule "lib/contract-deployer-template"]
 	path = lib/contract-deployer-template
 	url = https://github.com/0xPolygon/contract-deployer-template
+[submodule "lib/storage-layout-checker"]
+	path = lib/storage-layout-checker
+	url = https://github.com/0xPolygon/storage-layout-checker
diff --git a/lib/storage-layout-checker b/lib/storage-layout-checker
new file mode 160000
index 0000000..6bd9325
--- /dev/null
+++ b/lib/storage-layout-checker
@@ -0,0 +1 @@
+Subproject commit 6bd9325a57c2ff20ff4f4042b3d2239b649593b8