diff --git a/dlls/activeds/activeds.spec b/dlls/activeds/activeds.spec
index 63625d5..60f00f2 100644
--- a/dlls/activeds/activeds.spec
+++ b/dlls/activeds/activeds.spec
@@ -6,7 +6,7 @@
 8 stub ADsBuildVarArrayInt
 9 stdcall ADsOpenObject(wstr wstr wstr long ptr ptr)
 12 stub ADsSetLastError
-13 stub ADsGetLastError
+13 stdcall ADsGetLastError(ptr wstr long wstr long)
 14 stub AllocADsMem
 15 stdcall FreeADsMem(ptr)
 16 stub ReallocADsMem
diff --git a/dlls/activeds/activeds_main.c b/dlls/activeds/activeds_main.c
index 9c03ac1..36a198b 100644
--- a/dlls/activeds/activeds_main.c
+++ b/dlls/activeds/activeds_main.c
@@ -95,6 +95,15 @@ HRESULT WINAPI ADsOpenObject(LPCWSTR lpszPathName, LPCWSTR lpszUserName, LPCWSTR
 }
 
 /*****************************************************
+ * ADsGetLastError    [ACTIVEDS.13]
+ */
+HRESULT WINAPI ADsGetLastError(LPDWORD pError, LPWSTR buffer, DWORD buflen, LPWSTR bufname, DWORD bufnamelen)
+{
+    FIXME("(%p,%p,%d,%p,%d)stub\n", pError, buffer, buflen, bufname, bufnamelen);
+    return E_POINTER;
+}
+
+/*****************************************************
  * FreeADsMem             [ACTIVEDS.15]
  */
 BOOL WINAPI FreeADsMem(LPVOID pMem)