diff --git a/src/backend/interfaceregistry.c b/src/backend/interfaceregistry.c
index d3f070b56..89d26fe60 100644
--- a/src/backend/interfaceregistry.c
+++ b/src/backend/interfaceregistry.c
@@ -42,6 +42,7 @@ NOBUG_DEFINE_FLAG_PARENT (interfaceregistry, backend);
 static PSplay interfaceregistry;
 lumiera_mutex lumiera_interface_mutex;
 
+
 static int
 cmp_fn (const void* keya, const void* keyb);