diff --git a/src/slic3r/GUI/Preferences.cpp b/src/slic3r/GUI/Preferences.cpp
index a56fb67837..0a22ed44e9 100644
--- a/src/slic3r/GUI/Preferences.cpp
+++ b/src/slic3r/GUI/Preferences.cpp
@@ -118,7 +118,7 @@ wxBoxSizer *PreferencesDialog::create_item_language_combobox(
         else if (vlist[i] == wxLocale::GetLanguageInfo(wxLANGUAGE_GERMAN)) {
             language_name = wxString::FromUTF8("Deutsch");
         }
-        else if (vlist[i] == wxLocale::GetLanguageInfo(wxLANGUAGE_Czech)) {
+        else if (vlist[i] == wxLocale::GetLanguageInfo(wxLANGUAGE_CZECH)) {
             language_name = wxString::FromUTF8("Czech");
         }
         else if (vlist[i] == wxLocale::GetLanguageInfo(wxLANGUAGE_SWEDISH)) {
@@ -795,7 +795,7 @@ wxWindow* PreferencesDialog::create_general_page()
         wxLANGUAGE_ENGLISH,
         wxLANGUAGE_CHINESE_SIMPLIFIED,
         wxLANGUAGE_GERMAN,
-        wxLANGUAGE_Czech,
+        wxLANGUAGE_CZECH,
         wxLANGUAGE_FRENCH,
         wxLANGUAGE_SPANISH,
         wxLANGUAGE_SWEDISH,