diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0fbb4ccbe07..f91ba7e9ebf 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10539,9 +10539,6 @@ let
   sphinxcontrib_plantuml = buildPythonPackage (rec {
     name = "sphinxcontrib-plantuml-0.5";
 
-    # See issue #6548
-    disabled = isPyPy;
-
     src = pkgs.fetchurl {
       url = "https://pypi.python.org/packages/source/s/sphinxcontrib-plantuml/${name}.tar.gz";
       md5 = "4a8840fe3475a19c2af3fa877ab9d296";