diff --git a/pkgs/servers/web-apps/nifi/default.nix b/pkgs/servers/web-apps/nifi/default.nix
index 734ced245056..4b66484f7b27 100644
--- a/pkgs/servers/web-apps/nifi/default.nix
+++ b/pkgs/servers/web-apps/nifi/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ jdk11 ];
 
   installPhase = ''
-    mv ../$sourceRoot $out
+    cp -r ../$sourceRoot $out
     rm -f $out/bin/*bat
     rm -rf $out/extensions
     mkdir -p $out/share/nifi