diff --git a/modules/lang/plantuml/config.el b/modules/lang/plantuml/config.el
index 45a18a685..09ad4145d 100644
--- a/modules/lang/plantuml/config.el
+++ b/modules/lang/plantuml/config.el
@@ -9,8 +9,8 @@
   (set-popup-rule! "^\\*PLANTUML" :size 0.4 :select nil :ttl 0)
 
   (setq plantuml-default-exec-mode
-        (cond ((executable-find "plantuml") 'executable)
-              ((file-exists-p plantuml-jar-path) 'jar)
+        (cond ((file-exists-p plantuml-jar-path) 'jar)
+              ((executable-find "plantuml") 'executable)
               (plantuml-default-exec-mode))))