diff --git a/tooling/nargo_fmt/tests/expected/fn.nr b/tooling/nargo_fmt/tests/expected/fn.nr
index 0e61483398c..7fd45648c67 100644
--- a/tooling/nargo_fmt/tests/expected/fn.nr
+++ b/tooling/nargo_fmt/tests/expected/fn.nr
@@ -37,3 +37,11 @@ fn apply_binary_field_op<N>(
 ) -> bool {}
 
 fn main() -> distinct pub [Field;2] {}
+
+fn main(
+    message: [u8; 10],
+    message_field: Field,
+    pub_key_x: Field,
+    pub_key_y: Field,
+    signature: [u8; 64]
+) {}
diff --git a/tooling/nargo_fmt/tests/input/fn.nr b/tooling/nargo_fmt/tests/input/fn.nr
index f503db99853..45dc3370f14 100644
--- a/tooling/nargo_fmt/tests/input/fn.nr
+++ b/tooling/nargo_fmt/tests/input/fn.nr
@@ -24,3 +24,7 @@ fn main(tape: [Field; TAPE_LEN], initial_registers: [Field; REGISTER_COUNT], ini
 fn apply_binary_field_op<N>(lhs: RegisterIndex, rhs: RegisterIndex, result: RegisterIndex, op: u8, registers: &mut Registers<N>) -> bool {}
 
 fn main() -> distinct pub [Field;2] {}
+
+fn main(
+    message: [u8; 10], message_field: Field, pub_key_x: Field, pub_key_y: Field, signature: [u8; 64]
+) {}