diff --git a/src/main/lemondronor/circlebot.cljs b/src/main/lemondronor/circlebot.cljs
index ffdd2ab..73a7eed 100644
--- a/src/main/lemondronor/circlebot.cljs
+++ b/src/main/lemondronor/circlebot.cljs
@@ -451,7 +451,7 @@
    ;; aircraft.
    :curviness-threshold-degrees 1440
    ;; If the centroid of the aircraft's positions is less than this
-   ;; close to an airport, then it's probably just doinf flight
+   ;; close to an airport, then it's probably just doing flight
    ;; training.
    :minimum-airport-distance-km 2.5
    :history-db-path "advisory-circular.db"