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-rw-r--r--pkgs/development/libraries/qt-4.x/4.8/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/libraries/qt-4.x/4.8/default.nix b/pkgs/development/libraries/qt-4.x/4.8/default.nix
index 07a7993a67fe..788fb8741402 100644
--- a/pkgs/development/libraries/qt-4.x/4.8/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.8/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
       ./libressl.patch
       (substituteAll {
         src = ./dlopen-absolute-paths.diff;
-        cups = cups.out;
+        cups = if cups != null then cups.out else null;
         icu = icu.out;
         libXfixes = libXfixes.out;
         glibc = stdenv.cc.libc.out;