diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-localization-obsolete-l1-2-0.def b/mingw-w64-crt/lib-common/api-ms-win-core-localization-obsolete-l1-2-0.def
index 70c6c85..47dc192 100644
--- a/mingw-w64-crt/lib-common/api-ms-win-core-localization-obsolete-l1-2-0.def
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-localization-obsolete-l1-2-0.def
@@ -5,7 +5,5 @@
 CompareStringA
 EnumUILanguagesW
 GetStringTypeA
-GetSystemDefaultLocaleName
 GetSystemDefaultUILanguage
 GetUserDefaultUILanguage
-LCIDToLocaleName
diff --git a/mingw-w64-crt/lib32/api-ms-win-core-localization-obsolete-l1-2-0.def b/mingw-w64-crt/lib32/api-ms-win-core-localization-obsolete-l1-2-0.def
index 657f0de..2c25969 100644
--- a/mingw-w64-crt/lib32/api-ms-win-core-localization-obsolete-l1-2-0.def
+++ b/mingw-w64-crt/lib32/api-ms-win-core-localization-obsolete-l1-2-0.def
@@ -5,7 +5,5 @@
 CompareStringA@24
 EnumUILanguagesW@12
 GetStringTypeA@20
-GetSystemDefaultLocaleName@8
 GetSystemDefaultUILanguage@0
 GetUserDefaultUILanguage@0
-LCIDToLocaleName@16