diff --git a/ChangeLog b/ChangeLog
index 9527a6e8e..1f7de420e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2011-03-23  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/efiemu/i386/pc/cfgtables.c
+	(grub_machine_efiemu_init_tables): Make declaration a prototype.
+	* grub-core/loader/xnu.c (grub_xnu_lock): Likewise.
+	(grub_xnu_unlock): Likewise.
+	* grub-core/normal/cmdline.c (grub_cmdline_get/cl_set_pos_all): Likewise.
+
 2011-03-23  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/bus/usb/usb.c (attach_hooks): Make static.
diff --git a/grub-core/efiemu/i386/pc/cfgtables.c b/grub-core/efiemu/i386/pc/cfgtables.c
index 9287d3a94..7b6a40c87 100644
--- a/grub-core/efiemu/i386/pc/cfgtables.c
+++ b/grub-core/efiemu/i386/pc/cfgtables.c
@@ -24,7 +24,7 @@
 #include <grub/acpi.h>
 
 grub_err_t
-grub_machine_efiemu_init_tables ()
+grub_machine_efiemu_init_tables (void)
 {
   grub_uint8_t *ptr;
   void *table;
diff --git a/grub-core/loader/xnu.c b/grub-core/loader/xnu.c
index 5a84dea1c..73158fd10 100644
--- a/grub-core/loader/xnu.c
+++ b/grub-core/loader/xnu.c
@@ -1429,7 +1429,7 @@ grub_cmd_xnu_resume (grub_command_t cmd __attribute__ ((unused)),
 #endif
 
 void
-grub_xnu_lock ()
+grub_xnu_lock (void)
 {
   if (!locked)
     grub_dl_ref (my_mod);
@@ -1437,7 +1437,7 @@ grub_xnu_lock ()
 }
 
 void
-grub_xnu_unlock ()
+grub_xnu_unlock (void)
 {
   if (locked)
     grub_dl_unref (my_mod);
diff --git a/grub-core/normal/cmdline.c b/grub-core/normal/cmdline.c
index b8c20d91c..09f2271ea 100644
--- a/grub-core/normal/cmdline.c
+++ b/grub-core/normal/cmdline.c
@@ -240,7 +240,7 @@ grub_cmdline_get (const char *prompt)
     grub_term_gotoxy (cl_term->term, cl_term->xpos, cl_term->ypos);
   }
 
-  void cl_set_pos_all ()
+  void cl_set_pos_all (void)
   {
     unsigned i;
     for (i = 0; i < nterms; i++)