diff --git a/src/amber/cli/commands/exec.cr b/src/amber/cli/commands/exec.cr
index 3a5f13575..8504041ac 100644
--- a/src/amber/cli/commands/exec.cr
+++ b/src/amber/cli/commands/exec.cr
@@ -6,8 +6,14 @@ module Amber::CLI
 
     class Exec < Command
       command_name "exec"
-      @filename : String = "./tmp/#{Time.now.epoch_ms}_console.cr"
-      @filelogs : String = @filename.sub("console.cr", "console_result.log")
+      @filename : String
+      @filelogs : String
+
+      def initialize(__previous, __argv)
+        @filename = "./tmp/#{Time.now.epoch_ms}_console.cr"
+        @filelogs = @filename.sub("console.cr", "console_result.log")
+        super(__previous, __argv)
+      end
 
       class Options
         arg "code", desc: "Crystal code or .cr file to execute within the application scope", default: ""