Guardfile in discourse_theme-0.7.3 vs Guardfile in discourse_theme-0.7.4

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 directories %w(app lib test) \
-  .select { |d| Dir.exists?(d) ? d : UI.warning("Directory #{d} does not exist") }
+  .select { |d| Dir.exist?(d) ? d : UI.warning("Directory #{d} does not exist") }
 
 guard :minitest do
   # with Minitest::Unit
   watch(%r{^test/(.*)\/?test_(.*)\.rb$})
   watch(%r{^lib/(.*/)?([^/]+)\.rb$})     { |m| "test/test_#{m[2]}.rb" }