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-rw-r--r--misc/sync.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/misc/sync.c b/misc/sync.c
index 1b663422b5..0b18e72531 100644
--- a/misc/sync.c
+++ b/misc/sync.c
@@ -20,7 +20,7 @@
 
 /* Make all changes done to all files actually appear on disk.  */
 void
-sync ()
+sync (void)
 {
   __set_errno (ENOSYS);
 }