diff --git a/.gitmodules b/.gitmodules
index 2c13799..2881356 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -57,3 +57,6 @@
 [submodule "submodules/stream-benchmark"]
 	path = submodules/stream-benchmark
 	url = https://github.com/cirosantilli/stream-benchmark
+[submodule "submodules/freebsd"]
+	path = submodules/freebsd
+	url = https://github.com/cirosantilli/freebsd
diff --git a/build b/build
index 67bf893..6e1a193 100755
--- a/build
+++ b/build
@@ -67,6 +67,9 @@ submodule_extra_remotes = {
     'crosstool-ng': {
         'up': 'https://github.com/crosstool-ng/crosstool-ng',
     },
+    'freebsd': {
+        'up': 'https://github.com/freebsd/freebsd',
+    },
     'gcc': {
         'up': 'git://gcc.gnu.org/git/gcc.git',
     },
diff --git a/submodules/freebsd b/submodules/freebsd
new file mode 160000
index 0000000..b91f25e
--- /dev/null
+++ b/submodules/freebsd
@@ -0,0 +1 @@
+Subproject commit b91f25ea9827d4025a69f6972d19fd3a512ef9b7