diff --git a/.cirrus.yml b/.cirrus.yml
new file mode 100644
index 0000000..3960a06
--- /dev/null
+++ b/.cirrus.yml
@@ -0,0 +1,14 @@
+env:
+  CIRRUS_CLONE_DEPTH: 1
+  ARCH: amd64
+
+task:
+  freebsd_instance:
+    matrix:
+      image: freebsd-12-0-release-amd64
+      image: freebsd-11-2-release-amd64
+  script:
+   - cc --version
+   - export CFLAGS="-DITERATE=400 -DPAIRS_S=100 -DITERATIONS=24"
+   - ./tools/ci-build.sh --cores=$(sysctl -n hw.ncpu)
+   - make check
diff --git a/tools/ci-build.sh b/tools/ci-build.sh
index 9657303..f68f41a 100755
--- a/tools/ci-build.sh
+++ b/tools/ci-build.sh
@@ -5,5 +5,8 @@
 
 set -x
 ./configure $@
-make -j
-
+if [ `uname -s` = "FreeBSD" ]; then
+	make -j $(sysctl -n hw.ncpu)
+else
+	make -j
+fi