diff --git a/README.md b/README.md
index c5141c8a2..3975484d6 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # qupulse: A Quantum compUting PULse parametrization and SEquencing framework
 [![Coverage Status](https://coveralls.io/repos/github/qutech/qupulse/badge.svg?branch=master)](https://coveralls.io/github/qutech/qupulse?branch=master)
 [![Build Status](https://travis-ci.org/qutech/qupulse.svg?branch=master)](https://travis-ci.org/qutech/qupulse)
-[![Documentation Status](https://readthedocs.org/projects/qc-toolkit/badge/?version=latest)](http://qc-toolkit.readthedocs.org/en/latest/?badge=latest)
+[![Documentation Status](https://readthedocs.org/projects/qupulse/badge/?version=latest)](http://qupulse.readthedocs.org/en/latest/?badge=latest)
 
 The qupulse project aims to produce a software toolkit facilitating experiments involving pulse driven state manipulation of physical qubits.
 
diff --git a/qupulse/_program/_loop.py b/qupulse/_program/_loop.py
index 6c3c3ec24..e0a4e6c98 100644
--- a/qupulse/_program/_loop.py
+++ b/qupulse/_program/_loop.py
@@ -1,5 +1,5 @@
 import itertools
-from typing import Union, Dict, Set, Iterable, FrozenSet, Tuple, cast, List, Optional, DefaultDict, Deque, Generator
+from typing import Union, Dict, Set, Iterable, FrozenSet, Tuple, cast, List, Optional, DefaultDict, Generator
 from collections import defaultdict, deque
 from copy import deepcopy
 from enum import Enum
@@ -417,7 +417,7 @@ def channels(self) -> Set[ChannelID]:
     def __split_channels(channels: FrozenSet[ChannelID],
                          root_loop: Loop,
                          block_stack: List[Tuple[Tuple[int, ...],
-                                                 Deque[Instruction]]]) -> Loop:
+                                                 deque]]) -> Loop:
         while block_stack:
             current_loop_location, current_instruction_block = block_stack.pop()
             current_loop = root_loop.locate(current_loop_location)