diff --git a/adwaita-dark-theme.el b/adwaita-dark-theme.el
index 11e4570..27af867 100644
--- a/adwaita-dark-theme.el
+++ b/adwaita-dark-theme.el
@@ -380,7 +380,7 @@
    ;; flymake
    `(flymake-error ((,class (:underline (:color ,red)))))
    `(flymake-note ((,class (:underline (:color ,green)))))
-   `(flymake-warning ((,class (:underline (:color ,orange)))))
+   `(flymake-warning ((,class (:underline (:color ,yellow)))))
 
    ;; flyspell
    `(flyspell-incorrect ((,class (:inherit unspecified :underline (:color ,red)))))