diff --git a/src/command/parser.cr b/src/command/parser.cr
index c4b4a33..3e085e6 100644
--- a/src/command/parser.cr
+++ b/src/command/parser.cr
@@ -13,7 +13,7 @@ module CliGen::Parser
           parser.banner = {{@type.name}}::HEADER
           {% subcommands = @type.class.methods.select(&.annotation(::CliGen::SubCommand)) %}
           {% if subcommands.size > 0 %}
-            CliGen::define_section("Subcommands", parser)
+            CliGen.define_section("Subcommands", parser)
             {% for subcommand in subcommands %}
               {% subcommand_anno = subcommand.annotation(::CliGen::SubCommand) %}
               parser.on({{subcommand.name.stringify}}, {{subcommand_anno[:description]}}){
@@ -24,7 +24,7 @@ module CliGen::Parser
 
           {% arguments =  @type.class.methods.select(&.annotation(::CliGen::CommandArgument)) %}
           {% if arguments.size > 0 %}
-            CliGen::define_section("Provide Arguments", parser)
+            CliGen.define_section("Provide Arguments", parser)
             {% for argument in arguments %}
               {% argument_anno = argument.annotation(::CliGen::CommandArgument) %}
               {% if argument_anno[:short] == "" &&  argument_anno[:long] != "" %}