1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesh/gnunet-service-mesh_peer.h b/src/mesh/gnunet-service-mesh_peer.h
index 586cf5d06..234991ade 100644
--- a/src/mesh/gnunet-service-mesh_peer.h
+++ b/src/mesh/gnunet-service-mesh_peer.h
@@ -325,7 +325,7 @@ GMP_get_tunnel (const struct MeshPeer *peer);
  * @param hello Hello message.
  */
 void
-GMP_set_hello (struct MeshPeer *peer, struct GNUNET_HELLO_Message *hello);
+GMP_set_hello (struct MeshPeer *peer, const struct GNUNET_HELLO_Message *hello);
 
 /**
  * Get the hello message.