1 files changed, 4 insertions, 4 deletions

diff --git a/src/include/gnunet_os_lib.h b/src/include/gnunet_os_lib.h
index fc88e1123..015282054 100644
--- a/src/include/gnunet_os_lib.h
+++ b/src/include/gnunet_os_lib.h
@@ -18,6 +18,10 @@
      SPDX-License-Identifier: AGPL3.0-or-later
  */
 
+#if !defined (__GNUNET_UTIL_LIB_H_INSIDE__)
+#error "Only <gnunet_util_lib.h> can be included directly."
+#endif
+
 /**
  * @addtogroup libgnunetutil
  * Multi-function utilities library for GNUnet programs
@@ -60,10 +64,6 @@ extern "C"
 #endif
 #endif
 
-#include "gnunet_common.h"
-#include "gnunet_configuration_lib.h"
-#include "gnunet_scheduler_lib.h"
-
 
 /**
  * Flags that determine which of the standard streams