diff --git a/src/main/java/de/ph87/homeautomation/schedule/entry/ScheduleEntry.java b/src/main/java/de/ph87/homeautomation/schedule/entry/ScheduleEntry.java
index d6efc1d..e227628 100644
--- a/src/main/java/de/ph87/homeautomation/schedule/entry/ScheduleEntry.java
+++ b/src/main/java/de/ph87/homeautomation/schedule/entry/ScheduleEntry.java
@@ -48,6 +48,7 @@ public class ScheduleEntry {
   private boolean sunday = true;
 
   @Column(nullable = false)
+  @Enumerated(EnumType.STRING)
   private ScheduleEntryType type = ScheduleEntryType.TIME;
 
   private double zenith = Zenith.CIVIL.degrees().doubleValue();