diff --git a/pkg/schema/v1/icinga_state.go b/pkg/schema/v1/icinga_state.go
new file mode 100644
index 00000000..f37cdf99
--- /dev/null
+++ b/pkg/schema/v1/icinga_state.go
@@ -0,0 +1,44 @@
+package v1
+
+import (
+	"database/sql/driver"
+	"fmt"
+)
+
+type IcingaState uint8
+
+const (
+	Ok IcingaState = iota
+	Warning
+	Critical
+	Unknown
+	Pending IcingaState = 99
+)
+
+func (s IcingaState) String() string {
+	switch s {
+	case Ok:
+		return "ok"
+	case Warning:
+		return "warning"
+	case Critical:
+		return "critical"
+	case Unknown:
+		return "unknown"
+	case Pending:
+		return "pending"
+	default:
+		panic(fmt.Sprintf("invalid Icinga state %d", s))
+	}
+}
+
+// Value implements the driver.Valuer interface.
+func (s IcingaState) Value() (driver.Value, error) {
+	return s.String(), nil
+}
+
+// Assert interface compliance.
+var (
+	_ fmt.Stringer  = (*IcingaState)(nil)
+	_ driver.Valuer = (*IcingaState)(nil)
+)