diff --git a/dlls/advapi32/advapi32.spec b/dlls/advapi32/advapi32.spec
index a97161fa27e..06c4f8f6964 100644
--- a/dlls/advapi32/advapi32.spec
+++ b/dlls/advapi32/advapi32.spec
@@ -430,6 +430,8 @@
 @ stdcall LookupAccountNameA(str str ptr ptr ptr ptr ptr)
 @ stdcall LookupAccountNameW(wstr wstr ptr ptr ptr ptr ptr)
 @ stdcall LookupAccountSidA(ptr ptr ptr ptr ptr ptr ptr)
+@ stdcall LookupAccountSidLocalA(ptr ptr ptr ptr ptr ptr)
+@ stdcall LookupAccountSidLocalW(ptr ptr ptr ptr ptr ptr)
 @ stdcall LookupAccountSidW(ptr ptr ptr ptr ptr ptr ptr)
 @ stdcall LookupPrivilegeDisplayNameA(str str str ptr ptr)
 @ stdcall LookupPrivilegeDisplayNameW(wstr wstr wstr ptr ptr)
diff --git a/dlls/advapi32/security.c b/dlls/advapi32/security.c
index 802743401af..2030ebf638b 100644
--- a/dlls/advapi32/security.c
+++ b/dlls/advapi32/security.c
@@ -2315,6 +2315,21 @@ LookupAccountSidA(
     return r;
 }
 
+/******************************************************************************
+ * LookupAccountSidLocalA [ADVAPI32.@]
+ */
+BOOL WINAPI
+LookupAccountSidLocalA(
+	PSID sid,
+	LPSTR account,
+	LPDWORD accountSize,
+	LPSTR domain,
+	LPDWORD domainSize,
+	PSID_NAME_USE name_use )
+{
+    return LookupAccountSidA(NULL, sid, account, accountSize, domain, domainSize, name_use);
+}
+
 /******************************************************************************
  * LookupAccountSidW [ADVAPI32.@]
  *
@@ -2491,6 +2506,21 @@ LookupAccountSidW(
     return FALSE;
 }
 
+/******************************************************************************
+ * LookupAccountSidLocalW [ADVAPI32.@]
+ */
+BOOL WINAPI
+LookupAccountSidLocalW(
+	PSID sid,
+	LPWSTR account,
+	LPDWORD accountSize,
+	LPWSTR domain,
+	LPDWORD domainSize,
+	PSID_NAME_USE name_use )
+{
+    return LookupAccountSidW(NULL, sid, account, accountSize, domain, domainSize, name_use);
+}
+
 /******************************************************************************
  * SetFileSecurityA [ADVAPI32.@]
  *
diff --git a/dlls/api-ms-win-security-lsalookup-l1-1-0/api-ms-win-security-lsalookup-l1-1-0.spec b/dlls/api-ms-win-security-lsalookup-l1-1-0/api-ms-win-security-lsalookup-l1-1-0.spec
index 9b452656b05..6e9e6edc95f 100644
--- a/dlls/api-ms-win-security-lsalookup-l1-1-0/api-ms-win-security-lsalookup-l1-1-0.spec
+++ b/dlls/api-ms-win-security-lsalookup-l1-1-0/api-ms-win-security-lsalookup-l1-1-0.spec
@@ -1,7 +1,7 @@
 @ stub LookupAccountNameLocalA
 @ stub LookupAccountNameLocalW
-@ stub LookupAccountSidLocalA
-@ stub LookupAccountSidLocalW
+@ stdcall LookupAccountSidLocalA(ptr ptr ptr ptr ptr ptr) advapi32.LookupAccountSidLocalA
+@ stdcall LookupAccountSidLocalW(ptr ptr ptr ptr ptr ptr) advapi32.LookupAccountSidLocalW
 @ stub LsaLookupClose
 @ stub LsaLookupFreeMemory
 @ stub LsaLookupGetDomainInfo
diff --git a/dlls/api-ms-win-security-lsalookup-l1-1-1/api-ms-win-security-lsalookup-l1-1-1.spec b/dlls/api-ms-win-security-lsalookup-l1-1-1/api-ms-win-security-lsalookup-l1-1-1.spec
index 215c7b7b720..35a79f12cf1 100644
--- a/dlls/api-ms-win-security-lsalookup-l1-1-1/api-ms-win-security-lsalookup-l1-1-1.spec
+++ b/dlls/api-ms-win-security-lsalookup-l1-1-1/api-ms-win-security-lsalookup-l1-1-1.spec
@@ -4,8 +4,8 @@
 @ stub GetIdentityProviderInfoByName
 @ stub LookupAccountNameLocalA
 @ stub LookupAccountNameLocalW
-@ stub LookupAccountSidLocalA
-@ stub LookupAccountSidLocalW
+@ stdcall LookupAccountSidLocalA(ptr ptr ptr ptr ptr ptr) advapi32.LookupAccountSidLocalA
+@ stdcall LookupAccountSidLocalW(ptr ptr ptr ptr ptr ptr) advapi32.LookupAccountSidLocalW
 @ stub LsaLookupClose
 @ stub LsaLookupFreeMemory
 @ stub LsaLookupGetDomainInfo
diff --git a/include/winbase.h b/include/winbase.h
index 8b2eb2ccac8..44bfe98c043 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -2430,6 +2430,9 @@ WINADVAPI  BOOL        WINAPI LookupAccountNameW(LPCWSTR,LPCWSTR,PSID,LPDWORD,LP
 WINADVAPI  BOOL        WINAPI LookupAccountSidA(LPCSTR,PSID,LPSTR,LPDWORD,LPSTR,LPDWORD,PSID_NAME_USE);
 WINADVAPI  BOOL        WINAPI LookupAccountSidW(LPCWSTR,PSID,LPWSTR,LPDWORD,LPWSTR,LPDWORD,PSID_NAME_USE);
 #define                       LookupAccountSid WINELIB_NAME_AW(LookupAccountSid)
+WINADVAPI  BOOL        WINAPI LookupAccountSidLocalA(PSID,LPSTR,LPDWORD,LPSTR,LPDWORD,PSID_NAME_USE);
+WINADVAPI  BOOL        WINAPI LookupAccountSidLocalW(PSID,LPWSTR,LPDWORD,LPWSTR,LPDWORD,PSID_NAME_USE);
+#define                       LookupAccountSidLocal WINELIB_NAME_AW(LookupAccountSidLocal)
 WINBASEAPI BOOL        WINAPI LocalFileTimeToFileTime(const FILETIME*,LPFILETIME);
 WINBASEAPI BOOL        WINAPI LockFile(HANDLE,DWORD,DWORD,DWORD,DWORD);
 WINBASEAPI BOOL        WINAPI LockFileEx(HANDLE, DWORD, DWORD, DWORD, DWORD, LPOVERLAPPED);