diff --git a/ndb/src/ndbapi/NdbUtil.hpp b/ndb/src/ndbapi/NdbUtil.hpp
index d14ac65ddef..268f6c69e6f 100644
--- a/ndb/src/ndbapi/NdbUtil.hpp
+++ b/ndb/src/ndbapi/NdbUtil.hpp
@@ -31,6 +31,7 @@ Comment:
 
 #include <ndb_global.h>
 
+class Ndb;
 class NdbApiSignal;
 class NdbOperation;