1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/applications/science/biology/varscan/default.nix b/nixpkgs/pkgs/applications/science/biology/varscan/default.nix
index 2a232d64693d..7b09f601ad68 100644
--- a/nixpkgs/pkgs/applications/science/biology/varscan/default.nix
+++ b/nixpkgs/pkgs/applications/science/biology/varscan/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ makeWrapper ];
   buildInputs = [ jre ];
 
-  phases = [ "installPhase" ];
+  dontUnpack = true;
 
   installPhase = ''
     mkdir -p $out/libexec/varscan