diff --git a/.gitmodules b/.gitmodules
index 21657f04e6..c0d9f269a9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -551,3 +551,6 @@
 	path = libs/callable_traits
 	url = ../callable_traits.git
 	fetchRecurseSubmodules = on-demand
+[submodule "libs/contract"]
+	path = libs/contract
+	url = ../contract.git
diff --git a/libs/contract b/libs/contract
new file mode 160000
index 0000000000..47c40afa16
--- /dev/null
+++ b/libs/contract
@@ -0,0 +1 @@
+Subproject commit 47c40afa16cafa18f04211084daf43d46a64a070