diff --git a/nix/devshells.nix b/nix/devshells.nix
index 0c15e39b47..27f009fb4e 100644
--- a/nix/devshells.nix
+++ b/nix/devshells.nix
@@ -122,6 +122,8 @@ let
       mkdir -p "$CARDANO_WALLET_TLS_PATH"
       regenerate-dev-certs >/dev/null
 
+      sed -r "s/'127\.0\.0\.1'/undefined/g" -i node_modules/cardano-launcher/dist/src/cardanoNode.js
+
       echo
       echo 'Now, run ‘yarn dev’.'
     '';
diff --git a/nix/internal/any-darwin.nix b/nix/internal/any-darwin.nix
index 5590f3d84b..ea86ddb02c 100644
--- a/nix/internal/any-darwin.nix
+++ b/nix/internal/any-darwin.nix
@@ -137,6 +137,8 @@ in rec {
       patchShebangs .
       sed -r 's#.*patchElectronRebuild.*#${common.patchElectronRebuild}/bin/*#' -i scripts/rebuild-native-modules.sh
 
+      sed -r "s/'127\.0\.0\.1'/undefined/g" -i node_modules/cardano-launcher/dist/src/cardanoNode.js
+
       export DEVX_FIXME_DONT_YARN_INSTALL=1
       (
         cd installers/
diff --git a/nix/internal/x86_64-linux.nix b/nix/internal/x86_64-linux.nix
index 2b47db4d15..44967313dc 100644
--- a/nix/internal/x86_64-linux.nix
+++ b/nix/internal/x86_64-linux.nix
@@ -117,6 +117,8 @@ in rec {
       sed -r 's#.*patchElectronRebuild.*#${common.patchElectronRebuild}/bin/*#' -i scripts/rebuild-native-modules.sh
       yarn build:electron
 
+      sed -r "s/'127\.0\.0\.1'/undefined/g" -i node_modules/cardano-launcher/dist/src/cardanoNode.js
+
       yarn run package -- --name ${lib.escapeShellArg common.launcherConfigs.${cluster}.installerConfig.spacedName}
     '';
     installPhase = ''
diff --git a/nix/internal/x86_64-windows.nix b/nix/internal/x86_64-windows.nix
index 2e447e23f0..256c958e9e 100644
--- a/nix/internal/x86_64-windows.nix
+++ b/nix/internal/x86_64-windows.nix
@@ -86,6 +86,8 @@ in rec {
       mkdir -p installers/icons/${cluster}/${cluster}
       cp ${windowsIcons.${cluster}}/${cluster}/* installers/icons/${cluster}/${cluster}/
 
+      sed -r "s/'127\.0\.0\.1'/undefined/g" -i node_modules/cardano-launcher/dist/src/cardanoNode.js
+
       export DEBUG=electron-packager
       yarn --verbose --offline package --win64 --dir $(pwd) --icon installers/icons/${cluster}/${cluster}
     '';