diff --git a/listbox_unix.go b/listbox_unix.go
index f769f51..18dafba 100644
--- a/listbox_unix.go
+++ b/listbox_unix.go
@@ -75,7 +75,7 @@ func gListboxNew(multisel bool) *C.GtkWidget {
 	tv := (*C.GtkTreeView)(unsafe.Pointer(widget))
 	column := C.gtkTreeViewColumnNewWithAttributes(C.gtk_cell_renderer_text_new())
 	C.gtk_tree_view_column_set_sizing(column, C.GTK_TREE_VIEW_COLUMN_AUTOSIZE)
-	C.gtk_tree_view_column_set_resizable(column, C.FALSE)		// not resizeable by the user; just autoresize
+	C.gtk_tree_view_column_set_resizable(column, C.FALSE) // not resizeable by the user; just autoresize
 	C.gtk_tree_view_append_column(tv, column)
 	C.gtk_tree_view_set_headers_visible(tv, C.FALSE)
 	sel := C.GTK_SELECTION_SINGLE
diff --git a/prefsize_darwin.go b/prefsize_darwin.go
index ae53b8b..629a748 100644
--- a/prefsize_darwin.go
+++ b/prefsize_darwin.go
@@ -34,14 +34,14 @@ func areaPrefSize(control C.id) (width int, height int) {
 }
 
 var prefsizefuncs = [nctypes]func(C.id) (int, int){
-	c_button:			controlPrefSize,
-	c_checkbox:		controlPrefSize,
-	c_combobox:		controlPrefSize,
-	c_lineedit:		controlPrefSize,
-	c_label:			controlPrefSize,
-	c_listbox:			listboxPrefSize,
-	c_progressbar:		pbarPrefSize,
-	c_area:			areaPrefSize,
+	c_button:      controlPrefSize,
+	c_checkbox:    controlPrefSize,
+	c_combobox:    controlPrefSize,
+	c_lineedit:    controlPrefSize,
+	c_label:       controlPrefSize,
+	c_listbox:     listboxPrefSize,
+	c_progressbar: pbarPrefSize,
+	c_area:        areaPrefSize,
 }
 
 func (s *sysData) preferredSize() (width int, height int) {
diff --git a/prefsize_unix.go b/prefsize_unix.go
index 7ec2e86..7aecdab 100644
--- a/prefsize_unix.go
+++ b/prefsize_unix.go
@@ -4,10 +4,6 @@
 
 package ui
 
-import (
-	// ...
-)
-
 // GTK+ 3 makes this easy: controls can tell us what their preferred size is!
 // ...actually, it tells us two things: the "minimum size" and the "natural size".
 // The "minimum size" is the smallest size we /can/ display /anything/. The "natural size" is the smallest size we would /prefer/ to display.