diff --git a/.gitmodules b/.gitmodules
index d49ca8b165..c1a63e685d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -728,3 +728,8 @@
 	url = ../boost_install.git
 	fetchRecurseSubmodules = on-demand
 	branch = .
+[submodule "outcome"]
+	path = libs/outcome
+	url = ../outcome.git
+	fetchRecurseSubmodules = on-demand
+	branch = .
diff --git a/libs/outcome b/libs/outcome
new file mode 160000
index 0000000000..f3dc9ff947
--- /dev/null
+++ b/libs/outcome
@@ -0,0 +1 @@
+Subproject commit f3dc9ff9478502d4539ab5bbcc200d6a3283421b