diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 9c2a0f131..7b7825614 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -2872,14 +2872,14 @@ Some types may inherit styles from parent types.
     * noclip - boolean, set to true to allow the element to exceed formspec bounds.
     * padding - rect, adds space between the edges of the button and the content. This value is
                 relative to bgimg_middle.
-    * sound - a sound to be played when clicked.
+    * sound - a sound to be played when triggered.
     * textcolor - color, default white.
 * checkbox
     * noclip - boolean, set to true to allow the element to exceed formspec bounds.
-    * sound - a sound to be played when clicked.
+    * sound - a sound to be played when triggered.
 * dropdown
     * noclip - boolean, set to true to allow the element to exceed formspec bounds.
-    * sound - a sound to be played when clicked.
+    * sound - a sound to be played when the entry is changed.
 * field, pwdfield, textarea
     * border - set to false to hide the textbox background and border. Default true.
     * font - Sets font type. See button `font` property for more information.
@@ -2910,12 +2910,12 @@ Some types may inherit styles from parent types.
     * fgimg_pressed - image when pressed. Defaults to fgimg when not provided.
         * This is deprecated, use states instead.
     * NOTE: The parameters of any given image_button will take precedence over fgimg/fgimg_pressed
-    * sound - a sound to be played when clicked.
+    * sound - a sound to be played when triggered.
 * scrollbar
     * noclip - boolean, set to true to allow the element to exceed formspec bounds.
 * tabheader
     * noclip - boolean, set to true to allow the element to exceed formspec bounds.
-    * sound - a sound to be played when clicked.
+    * sound - a sound to be played when a different tab is selected.
     * textcolor - color. Default white.
 * table, textlist
     * font - Sets font type. See button `font` property for more information.