diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 010ae89894..ccda72f5ce 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -692,7 +692,7 @@ bool GUI_App::load_language(wxString language)
 		else
 			return false;
     }
-    delete m_wxLocale;
+	wxLocale *old_locale = m_wxLocale;
     m_wxLocale = new_locale;
     m_wxLocale->AddCatalogLookupPathPrefix(from_u8(localization_dir()));
     m_wxLocale->AddCatalog(SLIC3R_APP_KEY);
@@ -700,7 +700,9 @@ bool GUI_App::load_language(wxString language)
 	//FIXME This is a temporary workaround, the correct solution is to switch to "C" locale during file import / export only.
     wxSetlocale(LC_NUMERIC, "C");
     Preset::update_suffix_modified();
-    return true;
+	//FIXME Why the following line crashes?
+	// delete old_locale;
+	return true;
 }
 
 // Get a list of installed languages (languages for which we have dictionaries).
@@ -709,7 +711,7 @@ std::vector<const wxLanguageInfo*> GUI_App::get_installed_languages()
 	wxDir dir(from_u8(localization_dir()));
     wxString filename;
     std::vector<const wxLanguageInfo*> res;
-    res.emplace_back(wxLocale::FindLanguageInfo("en_EN"));
+    res.emplace_back(wxLocale::GetLanguageInfo(wxLANGUAGE_ENGLISH_US));
     for (bool cont = dir.GetFirst(&filename, wxEmptyString, wxDIR_DIRS); cont; cont = dir.GetNext(&filename)) {
 	    const wxLanguageInfo *langinfo = wxLocale::FindLanguageInfo(filename);
         if (langinfo != nullptr) {