diff --git a/include/winnls.h b/include/winnls.h
index 21de9985480..e497dac1f35 100644
--- a/include/winnls.h
+++ b/include/winnls.h
@@ -457,4 +457,6 @@ INT16       WINAPI GetLocaleInfo16(LCID,LCTYPE,LPSTR,INT16);
 BOOL16      WINAPI GetStringType16(LCID,DWORD,LPCSTR,INT16,LPWORD);
 
 
+LCID WINAPI ConvertDefaultLocale(LCID   Locale);
+
 #endif  /* __WINE_WINNLS_H */
diff --git a/ole/ole2nls.c b/ole/ole2nls.c
index 067ddd5d737..d18d33e6ebb 100644
--- a/ole/ole2nls.c
+++ b/ole/ole2nls.c
@@ -643,7 +643,20 @@ INT16 WINAPI GetLocaleInfo16(LCID lcid,LCTYPE LCType,LPSTR buf,INT16 len)
 {
 	return GetLocaleInfo32A(lcid,LCType,buf,len);
 }
-
+/******************************************************************************
+ * ConvertDefaultLocale32 [KERNEL32.147]
+ */
+LCID WINAPI ConvertDefaultLocale32 (LCID lcid)
+{	switch (lcid)
+	{  case LOCALE_SYSTEM_DEFAULT:
+	     return GetSystemDefaultLCID();
+	   case LOCALE_USER_DEFAULT:
+	     return GetUserDefaultLCID();
+	   case 0:
+	     return MAKELCID (LANG_NEUTRAL, SUBLANG_NEUTRAL);
+	}  
+	return MAKELANGID( PRIMARYLANGID(lcid), SUBLANG_NEUTRAL);
+}
 /******************************************************************************
  * GetLocaleInfo32A [KERNEL32.342]
  *
diff --git a/relay32/kernel32.spec b/relay32/kernel32.spec
index 9a2f5b6a229..e392228c10a 100644
--- a/relay32/kernel32.spec
+++ b/relay32/kernel32.spec
@@ -160,7 +160,7 @@ init	MAIN_KernelInit
 144 stdcall CompareStringW(long long wstr long wstr long) CompareString32W
 145 stub ConnectNamedPipe
 146 stdcall ContinueDebugEvent(long long long) ContinueDebugEvent
-147 stub ConvertDefaultLocale
+147 stdcall ConvertDefaultLocale (long) ConvertDefaultLocale32
 148 stdcall ConvertToGlobalHandle(long) ConvertToGlobalHandle
 149 stdcall CopyFileA(str str long) CopyFile32A
 150 stdcall CopyFileW(wstr wstr long) CopyFile32W