diff --git a/dlls/ntdsapi/ntdsapi.c b/dlls/ntdsapi/ntdsapi.c
index 01acda05e56..76565fbd0d8 100644
--- a/dlls/ntdsapi/ntdsapi.c
+++ b/dlls/ntdsapi/ntdsapi.c
@@ -150,3 +150,18 @@ DWORD WINAPI DsMakeSpnA(LPCSTR svc_class, LPCSTR svc_name,
 
     return ERROR_CALL_NOT_IMPLEMENTED;
 }
+
+/***********************************************************************
+ *             DsMakeSpnA (NTDSAPI.@)
+ */
+DWORD WINAPI DsGetSpnA(DS_SPN_NAME_TYPE ServType, LPCSTR Servlass, LPCSTR ServName,
+                       USHORT InstPort, USHORT nInstanceNames,
+                       LPCSTR *pInstanceNames, const USHORT *pInstancePorts,
+                       DWORD *pSpn, LPSTR **pszSpn)
+{
+    FIXME("(%d,%s,%s,%d,%d,%p,%p,%p,%p): stub!\n", ServType,
+            debugstr_a(Servlass), debugstr_a(ServName), InstPort,
+            nInstanceNames, pInstanceNames, pInstancePorts, pSpn, pszSpn);
+
+    return ERROR_CALL_NOT_IMPLEMENTED;
+}
diff --git a/dlls/ntdsapi/ntdsapi.spec b/dlls/ntdsapi/ntdsapi.spec
index a9607caf2fd..8a4758aa4cb 100644
--- a/dlls/ntdsapi/ntdsapi.spec
+++ b/dlls/ntdsapi/ntdsapi.spec
@@ -29,7 +29,7 @@
 @ stub DsGetDomainControllerInfoA
 @ stub DsGetDomainControllerInfoW
 @ stub DsGetRdnW
-@ stub DsGetSpnA
+@ stdcall DsGetSpnA(long str str long long ptr ptr ptr ptr)
 @ stub DsGetSpnW
 @ stub DsInheritSecurityIdentityA
 @ stub DsInheritSecurityIdentityW
diff --git a/include/ntdsapi.h b/include/ntdsapi.h
index 23f14938be4..9fecdab57b4 100644
--- a/include/ntdsapi.h
+++ b/include/ntdsapi.h
@@ -29,6 +29,16 @@ DWORD WINAPI DsMakeSpnA(LPCSTR, LPCSTR, LPCSTR, USHORT, LPCSTR, DWORD*, LPSTR);
 DWORD WINAPI DsMakeSpnW(LPCWSTR, LPCWSTR, LPCWSTR, USHORT, LPCWSTR, DWORD*, LPWSTR);
 #define DsMakeSpn WINELIB_NAME_AW(DsMakeSpn)
 
+typedef enum
+{
+    DS_SPN_DNS_HOST    = 0,
+    DS_SPN_DN_HOST     = 1,
+    DS_SPN_NB_HOST     = 2,
+    DS_SPN_DOMAIN      = 3,
+    DS_SPN_NB_DOMAIN   = 4,
+    DS_SPN_SERVICE     = 5
+} DS_SPN_NAME_TYPE;
+
 #ifdef __cplusplus
 }
 #endif