diff --git a/glib/goption.c b/glib/goption.c
index 530e0cdba..c1b085c19 100644
--- a/glib/goption.c
+++ b/glib/goption.c
@@ -56,7 +56,7 @@ typedef struct
   gpointer arg_data;
   union
   {
-    gboolean bool;
+    gboolean boolean;
     gint integer;
     gchar *str;
     gchar **array;
@@ -1585,7 +1585,7 @@ free_changes_list (GOptionContext *context,
           switch (change->arg_type)
             {
             case G_OPTION_ARG_NONE:
-              *(gboolean *)change->arg_data = change->prev.bool;
+              *(gboolean *)change->arg_data = change->prev.boolean;
               break;
             case G_OPTION_ARG_INT:
               *(gint *)change->arg_data = change->prev.integer;