diff --git a/gtkcalls_unix.go b/gtkcalls_unix.go
index 5dd6f25..6d9706d 100644
--- a/gtkcalls_unix.go
+++ b/gtkcalls_unix.go
@@ -24,7 +24,11 @@ func gtk_init() bool {
 	return fromgbool(C.gtk_init_check((*C.int)(nil), (***C.char)(nil)))
 }
 
+// the garbage collector has been found to eat my callback functions; this will stop it
+var callbackstore = make([]*func() bool, 0, 50)
+
 func gdk_threads_add_idle(what func() bool) {
+	callbackstore = append(callbackstore, &what)
 	C.gdk_threads_add_idle(callbacks["idle"], C.gpointer(unsafe.Pointer(&what)))
 }
 
@@ -41,9 +45,6 @@ func gtk_window_new() *gtkWidget {
 	return fromgtkwidget(C.gtk_window_new(0))
 }
 
-// the garbage collector has been found to eat my callback functions; this will stop it
-var callbackstore = make([]*func() bool, 0, 50)
-
 func g_signal_connect(obj *gtkWidget, sig string, callback func() bool) {
 	callbackstore = append(callbackstore, &callback)
 	ccallback := callbacks[sig]