diff --git a/ChangeLog b/ChangeLog
index b59a69569..1f7bbfa6c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-08-30  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/normal/color.c (grub_env_write_color_normal): Fix a warning.
+	(grub_env_write_color_highlight): Likewise.
+
 2010-08-30  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/normal/term.c (print_more): Return to normal and not
diff --git a/grub-core/normal/color.c b/grub-core/normal/color.c
index a16d1c2f9..2e6c80b94 100644
--- a/grub-core/normal/color.c
+++ b/grub-core/normal/color.c
@@ -125,10 +125,11 @@ set_colors (void)
 
 /* Replace default `normal' colors with the ones specified by user (if any).  */
 char *
-grub_env_write_color_normal (struct grub_env_var *var, const char *val)
+grub_env_write_color_normal (struct grub_env_var *var __attribute__ ((unused)),
+			     const char *val)
 {
   if (grub_parse_color_name_pair (&color_normal, val))
-    return 0;
+    return NULL;
 
   set_colors ();
 
@@ -137,10 +138,11 @@ grub_env_write_color_normal (struct grub_env_var *var, const char *val)
 
 /* Replace default `highlight' colors with the ones specified by user (if any).  */
 char *
-grub_env_write_color_highlight (struct grub_env_var *var, const char *val)
+grub_env_write_color_highlight (struct grub_env_var *var __attribute__ ((unused)),
+				const char *val)
 {
   if (grub_parse_color_name_pair (&color_highlight, val))
-    return 0;
+    return NULL;
 
   set_colors ();