diff --git a/pkgs/applications/graphics/inkscape/default.nix b/pkgs/applications/graphics/inkscape/default.nix
index c370cc069c5..ca52a4f2766 100644
--- a/pkgs/applications/graphics/inkscape/default.nix
+++ b/pkgs/applications/graphics/inkscape/default.nix
@@ -16,6 +16,11 @@ stdenv.mkDerivation rec {
 
   postPatch = ''
     patchShebangs share/extensions
+  ''
+  # Clang gets misdetected, so hardcode the right answer
+  + stdenv.lib.optionalString (stdenv.cc.cc.isClang or false) ''
+    substituteInPlace src/ui/tool/node.h \
+      --replace "#if __cplusplus >= 201103L" "#if true"
   '';
 
   propagatedBuildInputs = [