diff --git a/src/mechanize/history.cr b/src/mechanize/history.cr
index 3588ed0..183a90b 100644
--- a/src/mechanize/history.cr
+++ b/src/mechanize/history.cr
@@ -2,7 +2,7 @@ require "./page"
 
 class MechanizeCr::History
   property max_size : Int32
-  property array    : Array(MechanizeCr::Page)
+  property array : Array(MechanizeCr::Page)
 
   forward_missing_to @array