diff --git a/src/moonscript/fuckedtail.moon b/src/moonscript/fuckedtail.moon
index 2a293d0..b1ebf8b 100644
--- a/src/moonscript/fuckedtail.moon
+++ b/src/moonscript/fuckedtail.moon
@@ -4,7 +4,7 @@ class Buffer
     @data = {}
 
   add: (line) =>
-    if #data == @limit
+    if #@data == @limit
       table.remove @data, 0
 
     table.insert @data, line