diff --git a/clippy_lints/src/misc_early.rs b/clippy_lints/src/misc_early.rs
index 29aba7c12..38b11c5e7 100644
--- a/clippy_lints/src/misc_early.rs
+++ b/clippy_lints/src/misc_early.rs
@@ -271,7 +271,7 @@ impl EarlyLintPass for MiscEarlyLints {
                         cx,
                         BUILTIN_TYPE_SHADOW,
                         param.ident.span,
-                        &format!("This generic shadows the built-in type `{}`", name),
+                        &format!("this generic shadows the built-in type `{}`", name),
                     );
                 }
             }
diff --git a/tests/ui/builtin-type-shadow.stderr b/tests/ui/builtin-type-shadow.stderr
index bc785b075..f42b246af 100644
--- a/tests/ui/builtin-type-shadow.stderr
+++ b/tests/ui/builtin-type-shadow.stderr
@@ -1,4 +1,4 @@
-error: This generic shadows the built-in type `u32`
+error: this generic shadows the built-in type `u32`
   --> $DIR/builtin-type-shadow.rs:4:8
    |
 LL | fn foo<u32>(a: u32) -> u32 {