diff --git a/pkgs/applications/audio/open-stage-control/default.nix b/pkgs/applications/audio/open-stage-control/default.nix
index 3c57041e455..3574dc2f5ac 100644
--- a/pkgs/applications/audio/open-stage-control/default.nix
+++ b/pkgs/applications/audio/open-stage-control/default.nix
@@ -33,16 +33,13 @@ buildNpmPackage rec {
   makeCacheWritable = true;
   npmFlags = [ "--legacy-peer-deps" ];
 
-  # Override installPhase so we can copy the only folders that matter (app and node_modules)
+  # Override installPhase so we can copy the only directory that matters (app)
   installPhase = ''
     runHook preInstall
 
-    # prune unused deps
-    npm prune --omit dev --no-save $npmFlags
-
     # copy built app and node_modules directories
     mkdir -p $out/lib/node_modules/open-stage-control
-    cp -r app node_modules $out/lib/node_modules/open-stage-control/
+    cp -r app $out/lib/node_modules/open-stage-control/
 
     # copy icon
     install -Dm644 resources/images/logo.png $out/share/icons/hicolor/256x256/apps/open-stage-control.png