diff --git a/qemu/linux-user/syscall.c b/qemu/linux-user/syscall.c
index 5ff364d..a23f3f7 100644
--- a/qemu/linux-user/syscall.c
+++ b/qemu/linux-user/syscall.c
@@ -3882,10 +3882,13 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
         switch(arg2){
         case TARGET_F_GETLK64:
             cmd = F_GETLK64;
+            break;
         case TARGET_F_SETLK64:
             cmd = F_SETLK64;
+            break;
         case TARGET_F_SETLKW64:
             cmd = F_SETLK64;
+            break;
         default:
             cmd = arg2;
         }