diff --git a/dlls/clusapi/clusapi.c b/dlls/clusapi/clusapi.c
index 734676cb9e2..252f09b9a56 100644
--- a/dlls/clusapi/clusapi.c
+++ b/dlls/clusapi/clusapi.c
@@ -47,6 +47,27 @@ DWORD WINAPI GetNodeClusterState(LPCWSTR lpszNodeName, LPDWORD pdwClusterState)
     return ERROR_SUCCESS;
 }
 
+/***********************************************************************
+ *             OpenCluster   (CLUSAPI.@)
+ *
+ */
+HCLUSTER WINAPI OpenCluster(LPCWSTR lpszClusterName)
+{
+    FIXME("(%s) stub!\n", debugstr_w(lpszClusterName));
+
+    return (HCLUSTER)0xdeadbeef;
+}
+
+/***********************************************************************
+ *             CloseCluster   (CLUSAPI.@)
+ *
+ */
+BOOL WINAPI CloseCluster(HCLUSTER hCluster)
+{
+    FIXME("(%p) stub!\n", hCluster);
+
+    return TRUE;
+}
 
 /***********************************************************************
  *             DllMain   (CLUSAPI.@)
diff --git a/dlls/clusapi/clusapi.spec b/dlls/clusapi/clusapi.spec
index 6972f9befc5..a23af879875 100644
--- a/dlls/clusapi/clusapi.spec
+++ b/dlls/clusapi/clusapi.spec
@@ -3,7 +3,7 @@
 @ stub BackupClusterDatabase
 @ stub CanResourceBeDependent
 @ stub ChangeClusterResourceGroup
-@ stub CloseCluster
+@ stdcall CloseCluster(ptr)
 @ stub CloseClusterGroup
 @ stub CloseClusterNetInterface
 @ stub CloseClusterNetwork
@@ -93,7 +93,7 @@
 @ stub OfflineClusterResource
 @ stub OnlineClusterGroup
 @ stub OnlineClusterResource
-@ stub OpenCluster
+@ stdcall OpenCluster(wstr)
 @ stub OpenClusterGroup
 @ stub OpenClusterNetInterface
 @ stub OpenClusterNetwork
diff --git a/include/clusapi.h b/include/clusapi.h
index ff4577f9f5e..71e33027642 100644
--- a/include/clusapi.h
+++ b/include/clusapi.h
@@ -23,7 +23,11 @@
 extern "C" {
 #endif
 
+typedef struct _HCLUSTER *HCLUSTER;
+
+BOOL WINAPI CloseCluster(HCLUSTER hCluster);
 DWORD WINAPI GetNodeClusterState(LPCWSTR lpszNodeName, LPDWORD pdwClusterState);
+HCLUSTER WINAPI OpenCluster(LPCWSTR lpszClusterName);
 
 #ifdef __cplusplus
 }