diff --git a/pyicloud/services/calendar.py b/pyicloud/services/calendar.py
index 4e42a08..f10990a 100644
--- a/pyicloud/services/calendar.py
+++ b/pyicloud/services/calendar.py
@@ -62,21 +62,21 @@ class CalendarService(object):
         self.refresh_client(from_dt, to_dt)
         return self.response['Event']
 
-	def calendars(self):
-		"""
-		Retrieves calendars for this month
-		"""
-		today = datetime.today()
-		first_day, last_day = monthrange(today.year, today.month)
-		from_dt = datetime(today.year, today.month, first_day)
-		to_dt = datetime(today.year, today.month, last_day)
-		params = dict(self.params)
-		params.update({
-			'lang': 'en-us',
-			'usertz': get_localzone().zone,
-			'startDate': from_dt.strftime('%Y-%m-%d'),
-			'endDate': to_dt.strftime('%Y-%m-%d')
-		})
-		req = self.session.get(self._calendars, params=params)
-		self.response = req.json()
-		return self.response['Collection']
+    def calendars(self):
+        """
+        Retrieves calendars for this month
+        """
+        today = datetime.today()
+        first_day, last_day = monthrange(today.year, today.month)
+        from_dt = datetime(today.year, today.month, first_day)
+        to_dt = datetime(today.year, today.month, last_day)
+        params = dict(self.params)
+        params.update({
+            'lang': 'en-us',
+            'usertz': get_localzone().zone,
+            'startDate': from_dt.strftime('%Y-%m-%d'),
+            'endDate': to_dt.strftime('%Y-%m-%d')
+        })
+        req = self.session.get(self._calendars, params=params)
+        self.response = req.json()
+        return self.response['Collection']