diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..7771183c2
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/fbgemm"]
+	path = third_party/fbgemm
+	url = https://github.com/pytorch/FBGEMM.git
diff --git a/third_party/fbgemm b/third_party/fbgemm
new file mode 160000
index 000000000..e9ef20a2d
--- /dev/null
+++ b/third_party/fbgemm
@@ -0,0 +1 @@
+Subproject commit e9ef20a2d3d0e58a015be1804d7af341550dfd3b