diff --git a/src/ameba/rule/documentation/documentation_admonition.cr b/src/ameba/rule/documentation/documentation_admonition.cr
index 5b7993838..a9fd7e8e9 100644
--- a/src/ameba/rule/documentation/documentation_admonition.cr
+++ b/src/ameba/rule/documentation/documentation_admonition.cr
@@ -45,9 +45,9 @@ module Ameba::Rule::Documentation
     MSG_ERR  = "%s admonition error: %s"
 
     @[YAML::Field(ignore: true)]
-    private getter location : Time::Location {
+    private getter location : Time::Location do
       Time::Location.load(self.timezone)
-    }
+    end
 
     def test(source)
       Tokenizer.new(source).run do |token|