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-rw-r--r--nixpkgs/pkgs/development/libraries/libversion/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/libraries/libversion/default.nix b/nixpkgs/pkgs/development/libraries/libversion/default.nix
index e1dc591f8b5d..cee04fa79e43 100644
--- a/nixpkgs/pkgs/development/libraries/libversion/default.nix
+++ b/nixpkgs/pkgs/development/libraries/libversion/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake ];
 
   preCheck = ''
-    export LD_LIBRARY_PATH=/build/source/build/libversion/:$LD_LIBRARY_PATH
+    export LD_LIBRARY_PATH=/build/source/build/libversion/''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH
   '';
   doCheck = true;
   checkTarget = "test";