diff --git a/clap_builder/src/builder/command.rs b/clap_builder/src/builder/command.rs
index d050e4943bd..5ad30934f8d 100644
--- a/clap_builder/src/builder/command.rs
+++ b/clap_builder/src/builder/command.rs
@@ -4909,19 +4909,19 @@ impl fmt::Display for Command {
 }
 
 #[allow(dead_code)] // atm dependent on features enabled
-pub(crate) trait AppTag: crate::builder::ext::Extension {}
+pub(crate) trait AppExt: crate::builder::ext::Extension {}
 
 #[allow(dead_code)] // atm dependent on features enabled
 #[derive(Default, Copy, Clone, Debug)]
 struct TermWidth(usize);
 
-impl AppTag for TermWidth {}
+impl AppExt for TermWidth {}
 
 #[allow(dead_code)] // atm dependent on features enabled
 #[derive(Default, Copy, Clone, Debug)]
 struct MaxTermWidth(usize);
 
-impl AppTag for MaxTermWidth {}
+impl AppExt for MaxTermWidth {}
 
 fn two_elements_of<I, T>(mut iter: I) -> Option<(T, T)>
 where
diff --git a/clap_builder/src/builder/mod.rs b/clap_builder/src/builder/mod.rs
index abc0b753689..1645547fc34 100644
--- a/clap_builder/src/builder/mod.rs
+++ b/clap_builder/src/builder/mod.rs
@@ -66,4 +66,4 @@ pub use value_parser::_AnonymousValueParser;
 pub(crate) use self::str::Inner as StrInner;
 pub(crate) use action::CountType;
 pub(crate) use arg_settings::{ArgFlags, ArgSettings};
-pub(crate) use command::AppTag;
+pub(crate) use command::AppExt;
diff --git a/clap_builder/src/builder/styling.rs b/clap_builder/src/builder/styling.rs
index 7834300acdf..b00365adb71 100644
--- a/clap_builder/src/builder/styling.rs
+++ b/clap_builder/src/builder/styling.rs
@@ -161,7 +161,7 @@ impl Styles {
     }
 }
 
-impl super::AppTag for Styles {}
+impl super::AppExt for Styles {}
 
 impl Default for Styles {
     fn default() -> Self {