diff --git a/docs/en/modules/hello_sky.md b/docs/en/modules/hello_sky.md
index ad1d9e5bc9..fd43f9cd97 100644
--- a/docs/en/modules/hello_sky.md
+++ b/docs/en/modules/hello_sky.md
@@ -434,6 +434,7 @@ The [complete example code](https://github.com/PX4/PX4-Autopilot/blob/main/src/e
  */
 
 #include <px4_platform_common/px4_config.h>
+#include <px4_platform_common/log.h>
 #include <px4_platform_common/tasks.h>
 #include <px4_platform_common/posix.h>
 #include <unistd.h>