diff --git a/pkgs/tools/backup/duplicity/default.nix b/pkgs/tools/backup/duplicity/default.nix
index 61a1ec4baf27..aacc4f35754f 100644
--- a/pkgs/tools/backup/duplicity/default.nix
+++ b/pkgs/tools/backup/duplicity/default.nix
@@ -1,4 +1,5 @@
-{stdenv, fetchurl, python, librsync, makeWrapper}:
+{ stdenv, fetchurl, python, librsync, gnupg, makeWrapper }:
+
 stdenv.mkDerivation {
   name = "duplicity-0.6.06";
 
@@ -9,10 +10,12 @@ stdenv.mkDerivation {
 
   installPhase = ''
     python setup.py install --prefix=$out
-    wrapProgram $out/bin/duplicity --prefix PYTHONPATH : "$(toPythonPath $out)"
+    wrapProgram $out/bin/duplicity \
+      --prefix PYTHONPATH : "$(toPythonPath $out)" \
+      --prefix PATH : "${gnupg}/bin"
   '';
 
-  buildInputs = [python librsync makeWrapper];
+  buildInputs = [ python librsync makeWrapper ];
 
   meta = {
     description = "Encrypted bandwidth-efficient backup using the rsync algorithm";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7a4f583a94f0..96c5d598f1a3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -619,7 +619,7 @@ let
   };
 
   duplicity = import ../tools/backup/duplicity {
-    inherit fetchurl stdenv librsync makeWrapper python;
+    inherit fetchurl stdenv librsync gnupg makeWrapper python;
   };
 
   dvdplusrwtools = import ../tools/cd-dvd/dvd+rw-tools {