diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index 9acff4a0a26ce..f7828b033bb80 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -1133,7 +1133,7 @@ pub fn describe_flag_categories(early_dcx: &EarlyDiagCtxt, matches: &Matches) ->
     }
 
     if cg_flags.iter().any(|x| *x == "no-stack-check") {
-        early_dcx.early_warn("the --no-stack-check flag is deprecated and does nothing");
+        early_dcx.early_warn("the `-Cno-stack-check` flag is deprecated and does nothing");
     }
 
     if cg_flags.iter().any(|x| *x == "passes=list") {