diff --git a/packages/kpaste.nix b/packages/kpaste.nix
index 0d9053d..c313c42 100644
--- a/packages/kpaste.nix
+++ b/packages/kpaste.nix
@@ -5,6 +5,6 @@
 }:
 writers.writeDashBin "kpaste" ''
   ${curl}/bin/curl -sS http://p.r --data-binary @"''${1:--}" \
-    -H "Content-Type-Override: ''${KPASTE_CONTENT_TYPE-}"
+    -H "Content-Type-Override: ''${KPASTE_CONTENT_TYPE-}" |
   ${gnused}/bin/sed '$ {p;s|http://p.r|https://p.krebsco.de|}'
 ''