diff --git a/src/conf-parameter.hpp b/src/conf-parameter.hpp
index 72949c7..d6833ed 100644
--- a/src/conf-parameter.hpp
+++ b/src/conf-parameter.hpp
@@ -86,7 +86,7 @@
   MAX_FACES_PER_PREFIX_MAX = 60
 };
 
-enum {
+enum HyperbolicState {
   HYPERBOLIC_STATE_OFF = 0,
   HYPERBOLIC_STATE_ON = 1,
   HYPERBOLIC_STATE_DRY_RUN = 2,