diff --git a/pkgs/by-name/cr/cryptpad/package.nix b/pkgs/by-name/cr/cryptpad/package.nix
index 804ff3c72a29..ffb27ee1bb8a 100644
--- a/pkgs/by-name/cr/cryptpad/package.nix
+++ b/pkgs/by-name/cr/cryptpad/package.nix
@@ -120,6 +120,8 @@ buildNpmPackage {
     # Move to install directory manually.
     npm run install:components
     mv www/components "$out_cryptpad/www/"
+    # and fix absolute symlink to /build...
+    ln -Tfs ../../src/tweetnacl "$out_cryptpad/www/components/tweetnacl"
 
     # install OnlyOffice (install-onlyoffice.sh without network)
     mkdir -p "$out_cryptpad/www/common/onlyoffice/dist"