diff --git a/pkgs/development/python-modules/pycairo/default.nix b/pkgs/development/python-modules/pycairo/default.nix
index 50e1435f3f4b..0589bec36b95 100644
--- a/pkgs/development/python-modules/pycairo/default.nix
+++ b/pkgs/development/python-modules/pycairo/default.nix
@@ -15,13 +15,11 @@ if isPyPy then throw "pycairo not supported for interpreter ${python.executable}
 
   patches = [(fetchpatch {
     url = http://www.linuxfromscratch.org/patches/blfs/svn/pycairo-1.10.0-waf_unpack-1.patch;
-    curlOpts = "--user-agent 'Mozilla/5.0'";
     sha256 = "1bmrhq2nmhx4l5glvyi59r0hc7w5m56kz41frx7v3dcp8f91p7xd";
   })];
 
   patch_waf = fetchpatch {
     url = http://www.linuxfromscratch.org/patches/blfs/svn/pycairo-1.10.0-waf_python_3_4-1.patch;
-    curlOpts = "--user-agent 'Mozilla/5.0'";
     sha256 = "0xfl1i9dips2nykyg91f5h5r3xpk2hp1js1gq5z0hwjr0in55id4";
   };