diff --git a/ChangeLog b/ChangeLog
index fba9cf11c..f4a859746 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2007-11-24  Pavel Roskin  <proski@gnu.org>
+
+	* include/grub/i386/time.h: use "void" in the argument list
+	of grub_cpu_idle().
+	* include/grub/powerpc/time.h: Likewise.
+	* include/grub/sparc64/time.h: Likewise.
+
 2007-11-18  Christian Franke  <franke@computer.org>
 
 	* util/console.c (grub_ncurses_getkey): Change curses KEY_* mapping,
diff --git a/include/grub/i386/time.h b/include/grub/i386/time.h
index ab50c7ec3..a09d793d2 100644
--- a/include/grub/i386/time.h
+++ b/include/grub/i386/time.h
@@ -20,7 +20,7 @@
 #define KERNEL_CPU_TIME_HEADER	1
 
 static __inline void
-grub_cpu_idle ()
+grub_cpu_idle (void)
 {
   /* FIXME: this can't work untill we handle interrupts.  */
 /*  __asm__ __volatile__ ("hlt"); */
diff --git a/include/grub/powerpc/time.h b/include/grub/powerpc/time.h
index 6f00e90d1..5db7ff4f1 100644
--- a/include/grub/powerpc/time.h
+++ b/include/grub/powerpc/time.h
@@ -20,7 +20,7 @@
 #define KERNEL_CPU_TIME_HEADER	1
 
 static __inline void
-grub_cpu_idle ()
+grub_cpu_idle (void)
 {
   /* FIXME: not implemented */
 }
diff --git a/include/grub/sparc64/time.h b/include/grub/sparc64/time.h
index 6f00e90d1..5db7ff4f1 100644
--- a/include/grub/sparc64/time.h
+++ b/include/grub/sparc64/time.h
@@ -20,7 +20,7 @@
 #define KERNEL_CPU_TIME_HEADER	1
 
 static __inline void
-grub_cpu_idle ()
+grub_cpu_idle (void)
 {
   /* FIXME: not implemented */
 }