diff --git a/src/libslic3r/Config.cpp b/src/libslic3r/Config.cpp
index a290532a2..68a817b0f 100644
--- a/src/libslic3r/Config.cpp
+++ b/src/libslic3r/Config.cpp
@@ -754,6 +754,9 @@ int ConfigBase::load_from_json(const std::string &file, ConfigSubstitutionContex
     std::list<std::string> different_settings_append;
     std::string new_support_style;
     bool is_project_settings = false;
+
+    CNumericLocalesSetter locales_setter;
+
     try {
         boost::nowide::ifstream ifs(file);
         ifs >> j;
diff --git a/src/libslic3r/PresetBundle.cpp b/src/libslic3r/PresetBundle.cpp
index 15b1ef94e..c8d874dcb 100644
--- a/src/libslic3r/PresetBundle.cpp
+++ b/src/libslic3r/PresetBundle.cpp
@@ -2949,7 +2949,6 @@ void PresetBundle::load_config_file_config(const std::string &name_or_path, bool
 std::pair<PresetsConfigSubstitutions, size_t> PresetBundle::load_vendor_configs_from_json(
     const std::string &path, const std::string &vendor_name, LoadConfigBundleAttributes flags, ForwardCompatibilitySubstitutionRule compatibility_rule)
 {
-    CNumericLocalesSetter locales_setter;
     // Enable substitutions for user config bundle, throw an exception when loading a system profile.
     ConfigSubstitutionContext  substitution_context { compatibility_rule };
     PresetsConfigSubstitutions substitutions;