diff --git a/scsh/syscalls.c b/scsh/syscalls.c
index be4c11e..4dfd222 100644
--- a/scsh/syscalls.c
+++ b/scsh/syscalls.c
@@ -140,7 +140,7 @@ scheme_value df_getegid(long nargs, scheme_value *args)
 
 scheme_value df_setgid(long nargs, scheme_value *args)
 {
-    extern int setgid(gid_t  );
+    
     scheme_value ret1;
     int r1;
 
@@ -202,7 +202,7 @@ scheme_value df_geteuid(long nargs, scheme_value *args)
 
 scheme_value df_setuid(long nargs, scheme_value *args)
 {
-    extern int setuid(uid_t );
+    
     scheme_value ret1;
     int r1;