diff --git a/apps/main/admin.py b/apps/main/admin.py
index a4b2ee9..6d41690 100644
--- a/apps/main/admin.py
+++ b/apps/main/admin.py
@@ -1,5 +1,5 @@
 from django.contrib import admin
-from .models import Device, DeviceType, Experiment, Campaign, Location#, RunningExperiment
+from .models import Device, DeviceType, Experiment, Campaign, Location, RunningExperiment
 
 # Register your models here.
 admin.site.register(Campaign)
@@ -7,4 +7,4 @@ admin.site.register(Experiment)
 admin.site.register(Device)
 admin.site.register(DeviceType)
 admin.site.register(Location)
-#admin.site.register(RunningExperiment)
\ No newline at end of file
+admin.site.register(RunningExperiment)
\ No newline at end of file
diff --git a/apps/main/models.py b/apps/main/models.py
index 2baddb3..eaaf822 100644
--- a/apps/main/models.py
+++ b/apps/main/models.py
@@ -133,7 +133,7 @@ class Campaign(models.Model):
     
 class RunningExperiment(models.Model):
     radar = models.OneToOneField('Location', on_delete=models.CASCADE)
-    running_experiment = models.ManyToManyField('Experiment')
+    running_experiment = models.ManyToManyField('Experiment', blank = True)
     status = models.PositiveSmallIntegerField(default=0, choices=RADAR_STATES)
     
     
diff --git a/apps/main/views.py b/apps/main/views.py
index 36e2311..e499ad3 100644
--- a/apps/main/views.py
+++ b/apps/main/views.py
@@ -1013,10 +1013,11 @@ def radar_play(request, id_camp, id_radar):
                         else:
                             running_experiment = RunningExperiment(
                                                                    radar = radar,
-                                                                   running_experiment = exp,
                                                                    status = 3,
                                                                    )
                             running_experiment.save()
+                            running_experiment.running_experiment.add(exp)
+                            running_experiment.save()
                         
                         if answer:
                             messages.success(request, conf.message)