diff --git a/ChangeLog.adoc b/ChangeLog.adoc
index 6117183a8..2ed6ffed8 100644
--- a/ChangeLog.adoc
+++ b/ChangeLog.adoc
@@ -29,7 +29,7 @@ New features::
 
 Bug fixes::
 
-  * core: add missing mouse event "alt-ctrl-button2"
+  * core: add missing mouse events "alt-ctrl-button2" and "alt-ctrl-button3"
   * core: remove trailing directory separators in home directories (issue #2070)
   * fset: allow filename starting with "~" in command `/fset -export`
   * irc: add missing tags on self action messages when capability echo-message is enabled (issue #2074)
diff --git a/src/gui/curses/gui-curses-mouse.c b/src/gui/curses/gui-curses-mouse.c
index 23e727e47..caa2aab1c 100644
--- a/src/gui/curses/gui-curses-mouse.c
+++ b/src/gui/curses/gui-curses-mouse.c
@@ -75,6 +75,7 @@ char *gui_mouse_button_codes[][2] =
   { ")",  "alt-button3"        },
   { "8",  "alt-ctrl-button1"   },
   { ":",  "alt-ctrl-button2"   },
+  { "9",  "alt-ctrl-button3"   },
   { NULL, NULL                 } };