diff --git a/src/main/lemondronor/circlebot.cljs b/src/main/lemondronor/circlebot.cljs
index 983cde7..779d808 100644
--- a/src/main/lemondronor/circlebot.cljs
+++ b/src/main/lemondronor/circlebot.cljs
@@ -502,37 +502,41 @@
   (let [start-time (current-time)]
     ;; If --config-path is specified, definitely try to read that
     ;; file. Otherwise, only read config.yaml if it exists.
-    (p/let [base-config (if-let [config-path (.-config commander)]
-                          (util/read-config config-path)
-                          (if (fs/existsSync default-config-path)
-                            (util/read-config default-config-path)
-                            {}))
-            cli-config (build-config-from-commander commander)
-            secrets (util/read-config (.-secrets commander))
-            config (build-config base-config cli-config secrets)
-            db (read-history-db (:history-db-path config))
-            data (get-adsbexchange-live-data
-                  {:url (get-in config [:adsbx :url])
-                   :api-key (get-in config [:adsbx :api-key])
-                   :lat (:lat config)
-                   :lon (:lon config)
-                   :radius-nm (* (:radius-km config) 0.539957)})
-            now (current-time)
-            [new-db potential-circles] (-> db
-                                           (update-history-db (:aircraft data) now config)
-                                           (detect-circles now config))]
-      (p/do
-        (when potential-circles
-          (doseq [ac potential-circles]
-            (log-warn "%s: New circle detected: %s" (:icao ac) (ac-desc ac)))
-          (process-potential-circles potential-circles config now))
-                  (write-history-db new-db (:history-db-path config))
-                  (let [end-time (current-time)]
-                    (log-info
-                     "Completed processing in %f seconds: tracking %s aircraft; %s potential circles"
-                     (/ (- end-time start-time) 1000)
-                     (count new-db)
-                     (count potential-circles)))))))
+    (p/try
+      (p/let [base-config (if-let [config-path (.-config commander)]
+                           (util/read-config config-path)
+                           (if (fs/existsSync default-config-path)
+                             (util/read-config default-config-path)
+                             {}))
+             cli-config (build-config-from-commander commander)
+             secrets (util/read-config (.-secrets commander))
+             config (build-config base-config cli-config secrets)
+             db (read-history-db (:history-db-path config))
+             data (get-adsbexchange-live-data
+                   {:url (get-in config [:adsbx :url])
+                    :api-key (get-in config [:adsbx :api-key])
+                    :lat (:lat config)
+                    :lon (:lon config)
+                    :radius-nm (* (:radius-km config) 0.539957)})
+             now (current-time)
+             [new-db potential-circles] (-> db
+                                            (update-history-db (:aircraft data) now config)
+                                            (detect-circles now config))]
+       (p/do
+         (when potential-circles
+           (doseq [ac potential-circles]
+             (log-warn "%s: New circle detected: %s" (:icao ac) (ac-desc ac)))
+           (process-potential-circles potential-circles config now))
+         (write-history-db new-db (:history-db-path config))
+         (let [end-time (current-time)]
+           (log-info
+            "Completed processing in %f seconds: tracking %s aircraft; %s potential circles"
+            (/ (- end-time start-time) 1000)
+            (count new-db)
+            (count potential-circles)))))
+      (p/catch :default e
+        (log-error "%s" (.-stack e))
+        (.exit js/process 1)))))
 
 
 ;; (.on js/process "unhandledRejection"