diff --git a/nx/include/switch/services/applet.h b/nx/include/switch/services/applet.h
index ea5fd492..db3972e4 100644
--- a/nx/include/switch/services/applet.h
+++ b/nx/include/switch/services/applet.h
@@ -53,6 +53,11 @@ Result appletCreateManagedDisplayLayer(u64 *out);
 
 Result appletGetDesiredLanguage(u64 *LanguageCode);
 
+/**
+ * @brief Blocks the usage of the home button.
+ * @param val Unknown nanoseconds. Officially, only 0 is used.
+ * @note Can only be used in regularapps.
+ */
 Result appletBeginBlockingHomeButton(s64 val);
 
 Result appletEndBlockingHomeButton(void);