diff --git a/src/libslic3r/Config.cpp b/src/libslic3r/Config.cpp
index 69630c16ac..b86ae459bd 100644
--- a/src/libslic3r/Config.cpp
+++ b/src/libslic3r/Config.cpp
@@ -753,6 +753,9 @@ 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 f048c77cab..57bff3b265 100644
--- a/src/libslic3r/PresetBundle.cpp
+++ b/src/libslic3r/PresetBundle.cpp
@@ -2729,7 +2729,6 @@ 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;