1 files changed, 1 insertions, 1 deletions
diff --git a/posix/getppid.c b/posix/getppid.c
index e6dfcbb605..c32032436e 100644
--- a/posix/getppid.c
+++ b/posix/getppid.c
@@ -21,7 +21,7 @@
 
 /* Get the parent process ID of the calling process.  */
 int
-__getppid ()
+__getppid (void)
 {
   __set_errno (ENOSYS);
   return -1;