diff --git a/redo/unix/container.c b/redo/unix/container.c
index 41ee6956..0ab82afb 100644
--- a/redo/unix/container.c
+++ b/redo/unix/container.c
@@ -180,6 +180,7 @@ uiControl *newHolder(void)
 	h = (struct holder *) uiNewControl(holderType());
 
 	h->cw = containerWidget(uiMakeContainer(uiControl(h)));
+	h->cw->c = NULL;		// but don't make it manage ourselves
 
 	uiControl(h)->Handle = holderHandle;
 
diff --git a/redo/unix/radiobuttons.c b/redo/unix/radiobuttons.c
index 017f4ed2..5b698461 100644
--- a/redo/unix/radiobuttons.c
+++ b/redo/unix/radiobuttons.c
@@ -11,9 +11,12 @@ struct radiobuttons {
 
 uiDefineControlType(uiRadioButtons, uiTypeRadioButtons, struct radiobuttons)
 
+// TODO note that the handle of a uiRadioButtons is undefined
 static uintptr_t radiobuttonsHandle(uiControl *c)
 {
-	return 0;
+	struct radiobuttons *r = (struct radiobuttons *) c;
+
+	return (uintptr_t) (r->boxWidget);
 }
 
 static void radiobuttonsAppend(uiRadioButtons *rr, const char *text)
diff --git a/redo/unix/spinbox.c b/redo/unix/spinbox.c
index 078335e5..774630f8 100644
--- a/redo/unix/spinbox.c
+++ b/redo/unix/spinbox.c
@@ -16,7 +16,7 @@ static uintptr_t spinboxHandle(uiControl *c)
 {
 	struct spinbox *s = (struct spinbox *) c;
 
-	return PUT_CODE_HERE;
+	return (uintptr_t) (s->widget);
 }
 
 static void defaultOnChanged(uiSpinbox *s, void *data)