From 51765c0c8b7c569dc9f38b21cb65db7a89d8dc5e Mon Sep 17 00:00:00 2001
From: Michael Miller <icy.arctic.fox@gmail.com>
Date: Sun, 3 Mar 2019 19:06:37 -0700
Subject: [PATCH] Fix strange compiler error

Compiler said there was an error, but not what it was.
The compiler wasn't clear where the issue was either.
---
 src/spectator/formatting/match_data_values.cr | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/spectator/formatting/match_data_values.cr b/src/spectator/formatting/match_data_values.cr
index d8d6301..a9edac1 100644
--- a/src/spectator/formatting/match_data_values.cr
+++ b/src/spectator/formatting/match_data_values.cr
@@ -8,7 +8,7 @@ module Spectator::Formatting
 
     # Creates the values mapper.
     def initialize(@values : T)
-      @max_key_length = T.types.keys.map(&.to_s.size).max
+      @max_key_length = @values.keys.map(&.to_s.size).max
     end
 
     # Yields pairs that can be printed to output.