diff --git a/kernel/src/syscall/mod.rs b/kernel/src/syscall/mod.rs
index f865a43..1545af6 100644
--- a/kernel/src/syscall/mod.rs
+++ b/kernel/src/syscall/mod.rs
@@ -208,6 +208,14 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
             warn!("sys_getpgid is unimplemented");
             Ok(0)
         }
+        SYS_GETGROUPS=> {
+            warn!("sys_getgroups is unimplemented");
+            Ok(0)
+        }
+        SYS_SETGROUPS=> {
+            warn!("sys_setgroups is unimplemented");
+            Ok(0)
+        }
         SYS_SIGALTSTACK => {
             warn!("sys_sigaltstack is unimplemented");
             Ok(0)