diff --git a/server/src/config.rs b/server/src/config.rs
index 5ed11d3..b3c3836 100644
--- a/server/src/config.rs
+++ b/server/src/config.rs
@@ -1,5 +1,6 @@
 use std::{collections::HashMap, ops::RangeInclusive, path::PathBuf};
 
+use cfg_if::cfg_if;
 use clap::{Parser, ValueEnum};
 use lazy_static::lazy_static;
 use log::LevelFilter;
@@ -353,10 +354,9 @@ impl Config {
 	}
 }
 
-#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord, Default, ValueEnum)]
+#[derive(Clone, Copy, Eq, PartialEq, PartialOrd, Ord, ValueEnum)]
 pub enum ConfigFormat {
 	#[cfg(feature = "toml")]
-	#[default]
 	Toml,
 	#[cfg(feature = "json")]
 	Json,
@@ -364,6 +364,22 @@ pub enum ConfigFormat {
 	Yaml,
 }
 
+impl Default for ConfigFormat {
+	fn default() -> Self {
+		cfg_if! {
+			if #[cfg(feature = "toml")] {
+				return Self::Toml;
+			} else if #[cfg(feature = "json")] {
+				return Self::Json;
+			} else if #[cfg(feature = "yaml")] {
+				return Self::Yaml;
+			} else {
+				compile_error!("no config format feature enabled - build will fail!");
+			}
+		}
+	}
+}
+
 /// Performant server implementation of the Wisp protocol in Rust, made for epoxy.
 #[derive(Parser)]
 #[command(version = clap::crate_version!())]
diff --git a/server/src/handle/twisp.rs b/server/src/handle/twisp.rs
index bef1ceb..33e1271 100644
--- a/server/src/handle/twisp.rs
+++ b/server/src/handle/twisp.rs
@@ -103,7 +103,7 @@ fn set_term_size(fd: RawFd, size: Size) -> anyhow::Result<()> {
 	let size = libc::winsize::from(size);
 	let ret = unsafe { libc::ioctl(fd, libc::TIOCSWINSZ, std::ptr::addr_of!(size)) };
 	if ret == -1 {
-		Err(rustix::io::Errno::from_raw_os_error(
+		Err(nix::errno::Errno::from_raw(
 			std::io::Error::last_os_error().raw_os_error().unwrap_or(0),
 		)
 		.into())