diff --git a/rustfmt.toml b/rustfmt.toml
index e579754f8c..f5f3f01675 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -11,7 +11,7 @@ disable_all_formatting = false
 edition = "2018"
 empty_item_single_line = true
 enum_discrim_align_threshold = 6
-fn_args_layout = "Compressed"
+fn_params_layout = "Compressed"
 fn_single_line = false
 force_explicit_abi = true
 force_multiline_blocks = false
diff --git a/src/util.rs b/src/util.rs
index 78acc8ed6c..f6fb6aa85b 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -45,9 +45,7 @@ pub fn _panic(msg: Janet) -> ! {
 #[allow(dead_code)]
 #[track_caller]
 pub fn assert_deep_inner(
-    op: &'static str,
-    left: &dyn fmt::Debug,
-    right: &dyn fmt::Debug,
+    op: &'static str, left: &dyn fmt::Debug, right: &dyn fmt::Debug,
     args: Option<fmt::Arguments<'_>>,
 ) -> ! {
     match args {