diff --git a/doc/extensions/zephyr/application.py b/doc/extensions/zephyr/application.py
index d532e47408b..6926b6b2460 100644
--- a/doc/extensions/zephyr/application.py
+++ b/doc/extensions/zephyr/application.py
@@ -270,7 +270,7 @@ class ZephyrAppCommandsDirective(Directive):
             content.append('west sign{}'.format(dst))
 
         for goal in goals:
-            if goal == 'build' or goal == 'sign':
+            if goal in {'build', 'sign'}:
                 continue
             elif goal == 'flash':
                 content.append('west flash{}'.format(dst))