diff --git a/pkgs/development/python-modules/pyacoustid/default.nix b/pkgs/development/python-modules/pyacoustid/default.nix
index 2b23ef7b8c76..7dfd00db25f2 100644
--- a/pkgs/development/python-modules/pyacoustid/default.nix
+++ b/pkgs/development/python-modules/pyacoustid/default.nix
@@ -17,8 +17,6 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ requests audioread ];
 
-  patches = [ ./pyacoustid-py3.patch ];
-
   postPatch = ''
     sed -i \
         -e '/^FPCALC_COMMAND *=/s|=.*|= "${pkgs.chromaprint}/bin/fpcalc"|' \
diff --git a/pkgs/development/python-modules/pyacoustid/pyacoustid-py3.patch b/pkgs/development/python-modules/pyacoustid/pyacoustid-py3.patch
deleted file mode 100644
index f79b35fd345e..000000000000
--- a/pkgs/development/python-modules/pyacoustid/pyacoustid-py3.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From 19209469a709ec0914f82c9de23137e360e5e804 Mon Sep 17 00:00:00 2001
-From: Simon Chopin <chopin.simon@gmail.com>
-Date: Mon, 29 Sep 2014 10:38:20 +0200
-Subject: [PATCH] Explicit the UTF-8 encoding also when installing using Python
- 3
-
-If the locale isn't UTF-8, or for some reason Python doesn't pick up on
-it, it will try to decode using ASCII, which will of course cause
-mayhem, crash and despair.
-
-This patch will be shipped with the Debian package 1.1.0-1
----
- setup.py | 5 +++--
- 1 file changed, 3 insertions(+), 2 deletions(-)
-
-diff --git a/setup.py b/setup.py
-index eafe5ea..0732fe3 100644
---- a/setup.py
-+++ b/setup.py
-@@ -18,9 +18,10 @@
- 
- def _read(fn):
-     path = os.path.join(os.path.dirname(__file__), fn)
--    data = open(path).read()
-     if sys.version_info[0] < 3:
--        data = data.decode('utf8')
-+        data = open(path).read().decode('utf8')
-+    else:
-+        data = open(path, encoding='utf8').read()
-     # Special case some Unicode characters; PyPI seems to only like ASCII.
-     data = data.replace(u'\xe1', u'a')
-     data = data.replace(u'\u0161', u's')