diff --git a/user/ls.c b/user/ls.c
index b54d951..c67b84b 100644
--- a/user/ls.c
+++ b/user/ls.c
@@ -42,6 +42,7 @@ ls(char *path)
   }
 
   switch(st.type){
+  case T_DEVICE:
   case T_FILE:
     printf("%s %d %d %l\n", fmtname(path), st.type, st.ino, st.size);
     break;