diff -r 49bc645df8b7 -r 1cc365c34125 ui/gtk/range.c
--- a/ui/gtk/range.c	Wed Jan 27 20:55:37 2016 +0100
+++ b/ui/gtk/range.c	Fri Jan 29 18:48:56 2016 +0100
@@ -119,7 +119,7 @@
 
 void   ui_scrollbar_setextent(UiRange *range, double extent) {
     GtkAdjustment *a = gtk_range_get_adjustment(GTK_RANGE(range->obj));
-#ifdef ui_GTK2LEGACY
+#ifdef UI_GTK2LEGACY
     a->page_size = extent;
 #else
     gtk_adjustment_set_page_size(a, extent);