diff --git a/advisorycircular.sh b/advisorycircular.sh
index 3ef6c62..d00a0c2 100644
--- a/advisorycircular.sh
+++ b/advisorycircular.sh
@@ -9,5 +9,5 @@ sqb_path=/usr/local/share/advisorycircular/clean-basestation.sqb
 
 config_path="$config_dir"/"$instance"-config.yaml
 secrets_path="$config_dir"/"$instance"-secrets.yaml
-history_path="$run_dir"/"$instance"-history.edn
+history_path="$run_dir"/"$instance"-history.json
 (cd "$run_dir" && "$dir"/intervalexec 10 node $dir/out/advisorycircular.js --config "$config_path" --secrets "$secrets_path" --basestation-sqb "$sqb_path" --history "$history_path" --log-prefix "$instance")
diff --git a/src/main/lemondronor/advisorycircular.cljs b/src/main/lemondronor/advisorycircular.cljs
index 16b302e..56762ef 100644
--- a/src/main/lemondronor/advisorycircular.cljs
+++ b/src/main/lemondronor/advisorycircular.cljs
@@ -165,7 +165,8 @@
 
 (defn read-history-db [path]
   (p/let [json-str (util/read-file path {:encoding "utf-8"})
-          db (js->clj (.parse js/JSON json-str))]
+          db (js->clj (.parse js/JSON json-str) :keywordize-keys true)
+          db (into {} (map (fn [[k v]] [(name k) v]) db))]
     (log-verbose "Loaded %s aircraft from database %s" (count db) path)
     db))