diff --git a/sysdeps/unix/bsd/sun/sunos4/wait4.c b/sysdeps/unix/bsd/sun/sunos4/wait4.c
index 4d15ddc9e8..919cd7c42c 100644
--- a/sysdeps/unix/bsd/sun/sunos4/wait4.c
+++ b/sysdeps/unix/bsd/sun/sunos4/wait4.c
@@ -40,7 +40,7 @@ DEFUN(__wait4, (pid, stat_loc, options, usage),
       break;
 
     case WAIT_MYPGRP:
-      pid = - __getpgrp (0);
+      pid = - getpgrp ();
       break;
     }