diff --git a/src/options.c b/src/options.c
index fc486fd50..a03ebe0e2 100644
--- a/src/options.c
+++ b/src/options.c
@@ -286,7 +286,7 @@ static void FDECL(wc_set_font_name, (int, char *));
 static int FDECL(wc_set_window_colors, (char *));
 static boolean FDECL(illegal_menu_cmd_key, (CHAR_P));
 #ifndef CHANGE_COLOR
-int FDECL(optfn_palette, (int, BOOLEAN_P, BOOLEAN_P, char *, char *));
+int FDECL(optfn_palette, (int, int, BOOLEAN_P, char *, char *));
 #endif
 #ifdef CURSES_GRAPHICS
 extern int curses_read_attrs(const char *attrs);