diff --git a/.gitmodules b/.gitmodules
index 7e4c4c53..5c0bfdad 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "3rdparty/SPIRV-Cross"]
 	path = 3rdparty/SPIRV-Cross
 	url = https://github.com/KhronosGroup/SPIRV-Cross.git
+[submodule "include/FastSTL"]
+	path = include/FastSTL
+	url = https://github.com/MobileGL-Dev/FastSTL.git
diff --git a/include/FastSTL b/include/FastSTL
new file mode 160000
index 00000000..644b3b01
--- /dev/null
+++ b/include/FastSTL
@@ -0,0 +1 @@
+Subproject commit 644b3b01e6e7dcb6a67818289d2fb9bbe85232f2