diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
index 02e3992a6a940..bad7803812c48 100644
--- a/compiler/rustc_session/src/config.rs
+++ b/compiler/rustc_session/src/config.rs
@@ -1345,7 +1345,8 @@ pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
         opt::opt_s(
             "",
             "edition",
-            "Specify which edition of the compiler to use when compiling code.",
+            Box::leak(format!("Specify which edition of the compiler to use when compiling code.\
+            The default is {DEFAULT_EDITION} and the latest stable edition is {LATEST_STABLE_EDITION}.").into_boxed_str()),
             EDITION_NAME_LIST,
         ),
         opt::multi_s(