diff --git a/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java b/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java
index 0a9a0c9..57f16eb 100644
--- a/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java
+++ b/src/main/java/org/ntlab/citrusserver/repositories/ScheduleManager.java
@@ -147,6 +147,13 @@
                                 .computeIfAbsent(month, k -> new HashMap<>())
                                 .computeIfAbsent(day, k -> new HashMap<>())
                                 .put(scheduleId, schedule);
+                    }else {
+                        Schedule newSchedule = new Schedule("", "", "",-1,-1);
+                        resultSchedules
+                                .computeIfAbsent(year, k -> new HashMap<>())
+                                .computeIfAbsent(month, k -> new HashMap<>())
+                                .computeIfAbsent(day, k -> new HashMap<>())
+                                .put(scheduleId, newSchedule);
                     }
                 }
             return resultSchedules.get(year).get(month).get(day);