diff --git a/clippy_lints/src/functions/impl_trait_in_params.rs b/clippy_lints/src/functions/impl_trait_in_params.rs
index ace5932f4..e4b270db6 100644
--- a/clippy_lints/src/functions/impl_trait_in_params.rs
+++ b/clippy_lints/src/functions/impl_trait_in_params.rs
@@ -23,7 +23,7 @@ pub(super) fn check_fn<'tcx>(cx: &LateContext<'_>, kind: &'tcx FnKind<'_>, body:
                             if let Some(gen_span) = generics.span_for_param_suggestion() {
                                 diag.span_suggestion_with_style(
                                     gen_span,
-                                    "add a type paremeter, `{}`: `{}`",
+                                    "add a type paremeter",
                                     format!(", {next_letter}: {}", &param.name.ident().as_str()[5..]),
                                     rustc_errors::Applicability::MaybeIncorrect,
                                     rustc_errors::SuggestionStyle::ShowAlways,
diff --git a/tests/ui/impl_trait_in_params.stderr b/tests/ui/impl_trait_in_params.stderr
index 62b264f00..c0bcdfd6d 100644
--- a/tests/ui/impl_trait_in_params.stderr
+++ b/tests/ui/impl_trait_in_params.stderr
@@ -16,7 +16,7 @@ error: '`impl Trait` used as a function parameter'
 LL | pub fn c<C: Trait>(_: C, _: impl Trait) {}
    |                             ^^^^^^^^^^
    |
-help: add a type paremeter, `{}`: `{}`
+help: add a type paremeter
    |
 LL | pub fn c<C: Trait, T: Trait>(_: C, _: impl Trait) {}
    |                  ++++++++++