diff --git a/lib/stats/sysstats/sysstats.go b/lib/stats/sysstats/sysstats.go
index 75c0c17..9579280 100644
--- a/lib/stats/sysstats/sysstats.go
+++ b/lib/stats/sysstats/sysstats.go
@@ -21,6 +21,7 @@
 	stats.NewInteger("system/num-cpu").Set(int64(runtime.NumCPU()))
 	stats.NewIntegerFunc("system/num-goroutine", func() int64 { return int64(runtime.NumGoroutine()) })
 	stats.NewString("system/version").Set(runtime.Version())
+	stats.NewInteger("system/pid").Set(int64(os.Getpid()))
 	if hostname, err := os.Hostname(); err == nil {
 		stats.NewString("system/hostname").Set(hostname)
 	}
diff --git a/lib/stats/sysstats/sysstats_test.go b/lib/stats/sysstats/sysstats_test.go
index ee2f835..d157b5e 100644
--- a/lib/stats/sysstats/sysstats_test.go
+++ b/lib/stats/sysstats/sysstats_test.go
@@ -31,3 +31,14 @@
 		t.Errorf("unexpected Alloc value. Got %v, want != 0", v)
 	}
 }
+
+func TestPid(t *testing.T) {
+	obj, err := stats.GetStatsObject("system/pid")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	expected := int64(os.Getpid())
+	if got := obj.Value(); got != expected {
+		t.Errorf("unexpected result. Got %q, want %q", got, expected)
+	}
+}