diff --git a/riscos/wimp.c b/riscos/wimp.c
index f738dbc87..6307844de 100644
--- a/riscos/wimp.c
+++ b/riscos/wimp.c
@@ -699,57 +699,6 @@ os_error *ro_gui_wimp_get_sprite(const char *name, osspriteop_header **sprite)
 }
 
 
-/**
- * Open a window as a pane in another window.
- *
- * \param  parent  parent window
- * \param  pane	   pane to open in parent window
- * \param  offset  inset of pane from parent
- */
-
-void ro_gui_open_pane(wimp_w parent, wimp_w pane, int offset)
-{
-	wimp_window_state state;
-	os_error *error;
-
-	state.w = parent;
-	error = xwimp_get_window_state(&state);
-	if (error) {
-		LOG(("xwimp_get_window_state: 0x%x: %s",
-				error->errnum, error->errmess));
-		warn_user("WimpError", error->errmess);
-		return;
-	}
-	state.w = pane;
-	state.visible.x0 += offset;
-	state.visible.x1 -= offset;
-	state.visible.y0 += offset;
-	state.visible.y1 -= offset;
-	state.xscroll = 0;
-	state.yscroll = 0;
-	state.next = wimp_TOP;
-	error = xwimp_open_window_nested((wimp_open *) &state, parent,
-			wimp_CHILD_LINKS_PARENT_VISIBLE_BOTTOM_OR_LEFT
-					<< wimp_CHILD_XORIGIN_SHIFT |
-			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
-					<< wimp_CHILD_YORIGIN_SHIFT |
-			wimp_CHILD_LINKS_PARENT_VISIBLE_BOTTOM_OR_LEFT
-					<< wimp_CHILD_LS_EDGE_SHIFT |
-			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
-					<< wimp_CHILD_BS_EDGE_SHIFT |
-			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
-					<< wimp_CHILD_RS_EDGE_SHIFT |
-			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
-					<< wimp_CHILD_TS_EDGE_SHIFT);
-	if (error) {
-		LOG(("xwimp_open_window_nested: 0x%x: %s",
-				error->errnum, error->errmess));
-		warn_user("WimpError", error->errmess);
-		return;
-	}
-}
-
-
 /**
  * Performs simple user redraw for a window.
  *
diff --git a/riscos/wimp.h b/riscos/wimp.h
index 8a93f03f5..04a97d9de 100644
--- a/riscos/wimp.h
+++ b/riscos/wimp.h
@@ -50,7 +50,6 @@ void ro_gui_open_window_centre(wimp_w parent, wimp_w child);
 osspriteop_area *ro_gui_load_sprite_file(const char *pathname);
 bool ro_gui_wimp_sprite_exists(const char *sprite);
 os_error *ro_gui_wimp_get_sprite(const char *name, osspriteop_header **sprite);
-void ro_gui_open_pane(wimp_w parent, wimp_w pane, int offset);
 
 
 wimp_w ro_gui_set_window_background_colour(wimp_w window, wimp_colour background);