diff --git a/rowers/models.py b/rowers/models.py
index c6eaf2ec..324a7927 100644
--- a/rowers/models.py
+++ b/rowers/models.py
@@ -2367,6 +2367,14 @@ class PlannedSession(models.Model):
             dct = trainingparser.parsetodict(self.interval_string)
             dct = [item for item in dct if item['value'] != 0]
             dct = trainingparser.tofitdict(dct)
+            for step in dct['steps']:
+                try:
+                    step['targetValue'] = int(step['targetValue'])
+                    step['targetValueLow'] = int(step['targetValueHigh'])
+                    step['targetValueHigh'] = int(step['targetValueLow'])
+
+                except KeyError:
+                    pass
             self.steps = dct
 
         # sort units
@@ -2413,12 +2421,13 @@ class PlannedSession(models.Model):
         if self.steps and not self.fitfile:
             filename = 'aap.fit'
             filename = get_file_path(self,filename)
+
             steps = self.steps
             steps['filename'] = os.path.join(settings.MEDIA_ROOT,filename)
             fitfile = steps_write_fit(steps)
             self.fitfile.name = filename
             self.steps = steps
-            print(self.fitfile.name,filename)
+
 
         #  calculate approximate distance
         if self.steps: