diff --git a/uitable.h b/uitable.h
index 645096bd..a9008369 100644
--- a/uitable.h
+++ b/uitable.h
@@ -29,7 +29,7 @@ typedef struct uiTableCellPart uiTableCellPart;
 
 _UI_EXTERN uiTableCellLayout *uiNewTableCellLayout(void);
 _UI_EXTERN void uiFreeTableCellLayout(uiTableCellLayout *c);
-_UI_ExTERN void uiTableCellLayoutAppend(uiTableCellLayout *c, uiTableCellPart *part, int expand);
+_UI_EXTERN void uiTableCellLayoutAppend(uiTableCellLayout *c, uiTableCellPart *part, int expand);
 
 _UI_EXTERN uiTableCellPart *uiNewTableTextPart(int modelColumn);
 _UI_EXTERN void uiFreeTableCellPart(uiTableCellPart *p);
diff --git a/unix/progressbar.c b/unix/progressbar.c
index 08b45f33..9b543b04 100644
--- a/unix/progressbar.c
+++ b/unix/progressbar.c
@@ -9,7 +9,18 @@ struct uiProgressBar {
 	guint pulser;
 };
 
-uiUnixControlAllDefaults(uiProgressBar)
+uiUnixControlAllDefaultsExceptDestroy(uiProgressBar)
+
+static void uiProgressBarDestroy(uiControl *c)
+{
+	uiProgressBar *p = uiProgressBar(c);
+
+	// be sure to stop the timeout now
+	if (p->indeterminate)
+		g_source_remove(p->pulser);
+	g_object_unref(p->widget);
+	uiFreeControl(uiControl(p));
+}
 
 int uiProgressBarValue(uiProgressBar *p)
 {