diff --git a/src/main/lemondronor/circlebot.cljs b/src/main/lemondronor/circlebot.cljs
index 64e8167..0e2bdd6 100644
--- a/src/main/lemondronor/circlebot.cljs
+++ b/src/main/lemondronor/circlebot.cljs
@@ -370,11 +370,11 @@
                                  description))])
                       (fn [[image-path description]]
                         (if (and image-path description)
-                          (if (:twitter config)
+                          (if (and (:tweeting-enabled? config) (:twitter config))
                             (twitter/tweet (twitter/twit (:twitter config))
                                            description
                                            [image-path])
-                            (log-warn "Skipping tweeting: No twitter config provided"))
+                            (log-warn "Skipping tweeting"))
                           (log-warn "Skipping tweet %s %s" image-path description)))))))))))
 
 
@@ -395,14 +395,15 @@
       (.requiredOption "--lat <lat>" "Latitude of the circle of region of interest" parse-number)
       (.requiredOption "--lon <lat>" "Longitude of the circle of the region of interest" parse-number)
       (.requiredOption "--url <url>" "API url")
-      (.option "--queue <queue url>" "Queue URL (graphile)")
       (.option "--radius <radius>" "Radius of the circle of interest, in nautical miles" 20 parse-number)
+      (.option "--no-tweeting" "Do not tweet.")
       (.parse (.-argv js/process)))
   (let [start-time (current-time)]
     (p/then (p/all [(read-history-db history-db-path)
                     (util/read-config secrets-path)])
             (fn [[db config]]
-              (p/let [data (get-adsbexchange-live-data
+              (p/let [config (assoc config :tweeting-enabled? (.-tweeting commander))
+                      data (get-adsbexchange-live-data
                             {:url (.-url commander)
                              :api-key (get-in config [:adsbx :api-key])
                              :lat (.-lat commander)
diff --git a/src/main/lemondronor/circlebot/geo.cljc b/src/main/lemondronor/circlebot/geo.cljc
index 1431ce1..e91a17b 100644
--- a/src/main/lemondronor/circlebot/geo.cljc
+++ b/src/main/lemondronor/circlebot/geo.cljc
@@ -75,8 +75,8 @@
   (nil? bearing))
 
 
-(defn spurious-bearing-diff [^double bearing]
-  (> (Math/abs bearing) 160))
+(defn spurious-bearing-diff [^double bearing-diff]
+  (> (Math/abs bearing-diff) 160))
 
 
 (defn curviness