diff --git a/source3/wscript b/source3/wscript
index 5cbfd35f2a6..157a8c9d161 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -1361,6 +1361,28 @@ main() {
                 have_cluster_support = False
                 ctdb_broken = "ctdb_private.h is required for cluster support"
 
+        if have_cluster_support:
+            conf.CHECK_CODE('''
+                #define NO_CONFIG_H
+                #include "replace.h"
+                #include "system/wait.h"
+                #include "system/network.h"
+                #define private #error __USED_RESERVED_WORD_private__
+                #include <talloc.h>
+                #include <tdb.h>
+                #include <ctdb.h>
+                #include <ctdb_protocol.h>
+
+                int main(void)
+                {
+                    return 0;
+                }
+                ''',
+                'HAVE_CTDB_PROTOCOL_H',
+                addmain=False,
+                includes=includes,
+                msg='Checking for header ctdb_protocol.h')
+
         if have_cluster_support:
             conf.CHECK_CODE('''
                 #define NO_CONFIG_H