diff --git a/odl/util/utility.py b/odl/util/utility.py
index 67b24148637..828ee0ed5d1 100644
--- a/odl/util/utility.py
+++ b/odl/util/utility.py
@@ -118,6 +118,7 @@ def dedent(string, indent_str='   ', max_levels=None):
     Level 1.
     <->Level 2.
     <-><->Level 3.
+
     >>> text = '''<-><->Level 2.
     ... <-><-><->Level 3.'''
     >>> print(text)