diff --git a/src/app_error.rs b/src/app_error.rs
index d6111cd..1f2d889 100644
--- a/src/app_error.rs
+++ b/src/app_error.rs
@@ -1,5 +1,5 @@
 use crate::app_data::DockerControls;
-use core::fmt;
+use std::fmt;
 
 /// app errors to set in global state
 #[allow(unused)]