diff --git a/storm-core/src/clj/backtype/storm/util.clj b/storm-core/src/clj/backtype/storm/util.clj
index 4dbb101..81c6287 100644
--- a/storm-core/src/clj/backtype/storm/util.clj
+++ b/storm-core/src/clj/backtype/storm/util.clj
@@ -206,11 +206,11 @@
 
 (def memoized-local-hostname (memoize local-hostname))
 
-;; checks conf for STORM-LOCAL-HOSTNAME.
+;; checks conf for STORM_LOCAL_HOSTNAME.
 ;; when unconfigured, falls back to (memoized) guess by `local-hostname`.
 (defn hostname
   [conf]
-  (conf STORM-LOCAL-HOSTNAME (memoized-local-hostname)))
+  (conf Config/STORM_LOCAL_HOSTNAME (memoized-local-hostname)))
 
 (letfn [(try-port [port]
                   (with-open [socket (java.net.ServerSocket. port)]