diff --git a/pkgs/development/python-modules/ete3/default.nix b/pkgs/development/python-modules/ete3/default.nix
index b3c598ad396b..48ec3ca62386 100644
--- a/pkgs/development/python-modules/ete3/default.nix
+++ b/pkgs/development/python-modules/ete3/default.nix
@@ -7,7 +7,6 @@
 , withTreeVisualization ? false
 , lxml
 , withXmlSupport ? false
-, pyqt4
 , pyqt5
 }:
 
@@ -25,7 +24,7 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "ete3" ];
 
   propagatedBuildInputs = [ six numpy ]
-    ++ lib.optional withTreeVisualization (if isPy3k then pyqt5 else pyqt4)
+    ++ lib.optional withTreeVisualization pyqt5
     ++ lib.optional withXmlSupport lxml;
 
   meta = with lib; {