1 files changed, 3 insertions, 0 deletions

diff --git a/src/experimentation/gnunet-daemon-experimentation.h b/src/experimentation/gnunet-daemon-experimentation.h
index 9568cfa33..977d663e8 100644
--- a/src/experimentation/gnunet-daemon-experimentation.h
+++ b/src/experimentation/gnunet-daemon-experimentation.h
@@ -24,6 +24,8 @@
  * @author Christian Grothoff
  * @author Matthias Wachs
  */
+#ifndef GNUNET_DAEMON_EXPERIMENTATION_H
+#define GNUNET_DAEMON_EXPERIMENTATION_H
 #include "platform.h"
 #include "gnunet_getopt_lib.h"
 #include "gnunet_util_lib.h"
@@ -493,4 +495,5 @@ void
 GED_storage_stop (void);
 
 
+#endif /* #ifndef GNUNET_DAEMON_EXPERIMENTATION_H */
 /* end of gnunet-daemon-experimentation.h */