diff --git a/src/main/lemondronor/circlebot.cljs b/src/main/lemondronor/circlebot.cljs
index 54bdca1..ffdd2ab 100644
--- a/src/main/lemondronor/circlebot.cljs
+++ b/src/main/lemondronor/circlebot.cljs
@@ -500,7 +500,7 @@
                                         :access-token :access-token-secret])]
                      (set/difference (set required) (set present))))
         missing (concat missing1 missing2)]
-    (when missing
+    (when (seq missing)
       (throw (js/Error. (str "Missing configuration values: "
                              (string/join ", " (sort-by str missing))))))))