1 files changed, 2 insertions, 0 deletions
diff --git a/ndb/include/util/OutputStream.hpp b/ndb/include/util/OutputStream.hpp
index 460915e12e7..c0da886ca21 100644
--- a/ndb/include/util/OutputStream.hpp
+++ b/ndb/include/util/OutputStream.hpp
@@ -24,6 +24,7 @@
  */
 class OutputStream {
 public:
+  OutputStream() {}
   virtual ~OutputStream() {}
   virtual int print(const char * fmt, ...) = 0;
   virtual int println(const char * fmt, ...) = 0;
@@ -60,6 +61,7 @@ public:
 
 class NullOutputStream : public OutputStream {
 public:
+  NullOutputStream() {}
   int print(const char * /* unused */, ...) { return 1;}
   int println(const char * /* unused */, ...) { return 1;}
 };