diff --git a/Cargo.toml b/Cargo.toml
index 640f478b0c..8296c91295 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -181,7 +181,6 @@ non_canonical_partial_ord_impl = "allow"
 self_named_constructors = "allow"
 too_many_arguments = "allow"
 type_complexity = "allow"
-useless_format = "allow"
 wildcard_in_or_patterns = "allow"
 wrong_self_convention = "allow"
 
diff --git a/crates/hir-def/src/body/pretty.rs b/crates/hir-def/src/body/pretty.rs
index 0f2b279670..b821b91b89 100644
--- a/crates/hir-def/src/body/pretty.rs
+++ b/crates/hir-def/src/body/pretty.rs
@@ -33,7 +33,7 @@ pub(super) fn print_body_hir(db: &dyn DefDatabase, body: &Body, owner: DefWithBo
                 }
             )
         }),
-        DefWithBodyId::InTypeConstId(_) => format!("In type const = "),
+        DefWithBodyId::InTypeConstId(_) => "In type const = ".to_string(),
         DefWithBodyId::VariantId(it) => {
             let loc = it.lookup(db);
             let enum_loc = loc.parent.lookup(db);