diff --git a/reactos/dll/win32/authz/authz.c b/reactos/dll/win32/authz/authz.c
index d0811bf316a..2a17c93cc50 100644
--- a/reactos/dll/win32/authz/authz.c
+++ b/reactos/dll/win32/authz/authz.c
@@ -178,7 +178,8 @@ AuthzInitializeObjectAccessAuditEvent(IN DWORD Flags,
                                       IN PWSTR szObjectName,
                                       IN PWSTR szAdditionalInfo,
                                       OUT PAUTHZ_AUDIT_EVENT_HANDLE phAuditEvent,
-                                      IN DWORD dwAdditionalParamCount)
+                                      IN DWORD dwAdditionalParamCount,
+                                      ...)
 {
     UNIMPLEMENTED;
     return FALSE;
@@ -199,7 +200,8 @@ AuthzInitializeObjectAccessAuditEvent2(IN DWORD Flags,
                                        IN PWSTR szAdditionalInfo,
                                        IN PWSTR szAdditionalInfo2,
                                        OUT PAUTHZ_AUDIT_EVENT_HANDLE phAuditEvent,
-                                       IN DWORD dwAdditionalParameterCount)
+                                       IN DWORD dwAdditionalParameterCount,
+                                       ...)
 {
     UNIMPLEMENTED;
     return FALSE;
diff --git a/reactos/include/psdk/authz.h b/reactos/include/psdk/authz.h
index 39caf49bed9..aab6c1e79e2 100644
--- a/reactos/include/psdk/authz.h
+++ b/reactos/include/psdk/authz.h
@@ -230,7 +230,8 @@ AuthzInitializeObjectAccessAuditEvent(IN DWORD Flags,
                                       IN PWSTR szObjectName,
                                       IN PWSTR szAdditionalInfo,
                                       OUT PAUTHZ_AUDIT_EVENT_HANDLE phAuditEvent,
-                                      IN DWORD dwAdditionalParamCount);
+                                      IN DWORD dwAdditionalParameterCount,
+                                      ...);
 
 AUTHZAPI
 BOOL
@@ -243,7 +244,8 @@ AuthzInitializeObjectAccessAuditEvent2(IN DWORD Flags,
                                        IN PWSTR szAdditionalInfo,
                                        IN PWSTR szAdditionalInfo2,
                                        OUT PAUTHZ_AUDIT_EVENT_HANDLE phAuditEvent,
-                                       IN DWORD dwAdditionalParameterCount);
+                                       IN DWORD dwAdditionalParameterCount,
+                                       ...);
 
 AUTHZAPI
 BOOL