diff --git a/test/page2.c b/test/page2.c
index 71575c28..9ed96efd 100644
--- a/test/page2.c
+++ b/test/page2.c
@@ -25,7 +25,9 @@ static int moveBack;
 static void movePage1(uiButton *b, void *data)
 {
 	if (moveBack) {
-		// TODO
+		uiBoxDelete(mainBox, 1);
+		uiTabInsertPageBefore(mainTab, 0, uiControl(page1));
+		uiButtonSetText(b, moveOutText);
 		return;
 	}
 	uiTabDeletePage(mainTab, 0);
diff --git a/ui.idl b/ui.idl
index 75cfc735..205c19ab 100644
--- a/ui.idl
+++ b/ui.idl
@@ -103,6 +103,7 @@ func NewLabel(text *const char) *Label;
 
 interface Tab from Control {
 	func AppendPage(name *const char, c *Control);
+	func InsertPageBefore(name *const char, before uintmax_t, c *Control);
 	func DeletePage(index uintmax_t);
 	func NumPages(void) uintmax_t;
 	func Margined(page uintmax_t) int;