diff --git a/lib/linux/x86-mes-gcc/syscall.c b/lib/linux/x86-mes-gcc/syscall.c
index 28d2b662..39c23cdc 100644
--- a/lib/linux/x86-mes-gcc/syscall.c
+++ b/lib/linux/x86-mes-gcc/syscall.c
@@ -108,12 +108,6 @@ __sys_call4 (long sys_call, long one, long two, long three, long four)
 }
 // *INDENT-ON*
 
-long __sys_call (long sys_call);
-long __sys_call1 (long sys_call, long one);
-long __sys_call2 (long sys_call, long one, long two);
-long __sys_call3 (long sys_call, long one, long two, long three);
-long __sys_call4 (long sys_call, long one, long two, long three, long four);
-
 long
 _sys_call (long sys_call)
 {