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-rw-r--r--pkgs/os-specific/linux/tiscamera/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/os-specific/linux/tiscamera/default.nix b/pkgs/os-specific/linux/tiscamera/default.nix
index dfcf4c9937b1..387a3bcf2c6f 100644
--- a/pkgs/os-specific/linux/tiscamera/default.nix
+++ b/pkgs/os-specific/linux/tiscamera/default.nix
@@ -84,7 +84,7 @@ stdenv.mkDerivation rec {
   # dependency on `libtcam` (which itself is built as part of this build). In order to allow
   # that, we set the dynamic linker's path to point on the build time location of the library.
   preBuild = ''
-    export LD_LIBRARY_PATH=$PWD/src:$LD_LIBRARY_PATH
+    export LD_LIBRARY_PATH=$PWD/src''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH
   '';
 
   meta = with lib; {