diff --git a/seminar/models.py b/seminar/models.py
index da1207c9..f3d3da51 100644
--- a/seminar/models.py
+++ b/seminar/models.py
@@ -301,7 +301,7 @@ class Resitel(SeminarModelBase):
 			return 'Prof.'
 		else:
 			return 'Akad.'
-	def __str__():
+	def __str__(self):
 		return self.osoba.plne_jmeno()