diff --git a/include/clusapi.h b/include/clusapi.h
index f79c150b4e5..0772b598d30 100644
--- a/include/clusapi.h
+++ b/include/clusapi.h
@@ -19,6 +19,6 @@
 #ifndef __WINE_CLUSAPI_H
 #define __WINE_CLUSAPI_H
 
-DWORD WINAPI GetNodeClusterState(LPCWSTR lpszNodeName, DWORD *pdwClusterState);
+DWORD WINAPI GetNodeClusterState(LPCWSTR lpszNodeName, LPDWORD pdwClusterState);
 
 #endif /* __WINE_CLUSAPI_H */
diff --git a/tools/winapi/win32.api b/tools/winapi/win32.api
index 3c36dcaa242..12c6d089ddd 100644
--- a/tools/winapi/win32.api
+++ b/tools/winapi/win32.api
@@ -443,6 +443,20 @@ ULONG *
 PCHAR
 PCSTR
 
+%%clusapi.dll
+
+%long
+
+DWORD
+
+%ptr
+
+LPDWORD
+
+%wstr
+
+LPCWSTR
+
 %%comcat.dll
 
 %long