diff --git a/freekake_api/mission/models.py b/freekake_api/mission/models.py
index d93caca..97486d5 100644
--- a/freekake_api/mission/models.py
+++ b/freekake_api/mission/models.py
@@ -58,7 +58,8 @@ class Mission(SoftDeleteModel):
     category = models.CharField(max_length=50, choices=MISSION_CATEGORY_CHOICES)
     task = models.CharField(max_length=50, choices=MISSION_TASK_CHOICES)
 
-    date_valid = models.DateField(null=True, blank=True)
+    date_from = models.DateField(null=True, blank=True)
+    date_to = models.DateField(null=True, blank=True)
     
     time_from_valid = models.TimeField(null=True, blank=True)
     time_to_valid = models.TimeField(null=True, blank=True)
diff --git a/freekake_api/mission/serializers.py b/freekake_api/mission/serializers.py
index 335b186..6aa66e5 100644
--- a/freekake_api/mission/serializers.py
+++ b/freekake_api/mission/serializers.py
@@ -17,7 +17,8 @@ class MissionSerializer(serializers.ModelSerializer):
             'category',
             'task',
             'status',
-            'date_valid',
+            'date_from',
+            'date_to',
             'time_from_valid',
             'time_to_valid',
         ]
@@ -47,7 +48,8 @@ class MissionDetailSerializer(serializers.ModelSerializer):
             'category',
             'task',
             'status',
-            'date_valid',
+            'date_from',
+            'date_to',
             'time_from_valid',
             'time_to_valid',
             'category_display',