diff --git a/common/rfb/SMsgReaderV3.cxx b/common/rfb/SMsgReaderV3.cxx
index 37070a8..da012c6 100644
--- a/common/rfb/SMsgReaderV3.cxx
+++ b/common/rfb/SMsgReaderV3.cxx
@@ -15,6 +15,8 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
  * USA.
  */
+
+#include <stdio.h>
 #include <rfb/PixelFormat.h>
 #include <rfb/msgTypes.h>
 #include <rfb/Exception.h>