diff --git a/pkgs/tools/graphics/zbar/default.nix b/pkgs/tools/graphics/zbar/default.nix
index d5cea08f3df9..83c9b1577935 100644
--- a/pkgs/tools/graphics/zbar/default.nix
+++ b/pkgs/tools/graphics/zbar/default.nix
@@ -1,6 +1,6 @@
 x@{builderDefsPackage
   , imagemagickBig, pkgconfig, python, pygtk, perl, libX11, libv4l
-  , qt4, lzma
+  , qt4, lzma, gtk2
   , ...}:
 builderDefsPackage
 (a :  
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1ad90b95abda..57ffb694eb6f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1872,7 +1872,11 @@ let
 
   youtubeDL = callPackage ../tools/misc/youtube-dl { inherit (haskellPackages) pandoc; };
 
-  zbar = callPackage ../tools/graphics/zbar {};
+  zbar = callPackage ../tools/graphics/zbar {
+    pygtk = lib.overrideDerivation pygtk (x: {
+      gtk = gtk2;
+    });
+  };
 
   zdelta = callPackage ../tools/compression/zdelta { };