diff --git a/veilid-server/src/main.rs b/veilid-server/src/main.rs
index 03c94e63..630a9d5d 100644
--- a/veilid-server/src/main.rs
+++ b/veilid-server/src/main.rs
@@ -4,6 +4,9 @@
 #![deny(unused_must_use)]
 #![recursion_limit = "256"]
 
+#[cfg(all(feature = "rt-async-std", windows))]
+compile_error! {"async-std compilation for windows is currently unsupported"}
+
 mod client_api;
 mod server;
 mod settings;
@@ -77,6 +80,7 @@ pub struct CmdlineArgs {
     /// Turn on OpenTelemetry tracing
     ///
     /// This option uses the GRPC OpenTelemetry protocol, not HTTP. The format for the endpoint is host:port, like 'localhost:4317'
+    #[cfg(feature = "opentelemetry-otlp")]
     #[arg(long, value_name = "endpoint")]
     otlp: Option<String>,
 
diff --git a/veilid-tools/src/ipc/ipc_async_std/windows.rs b/veilid-tools/src/ipc/ipc_async_std/windows.rs
index 9ba0c76f..2a7d26d2 100644
--- a/veilid-tools/src/ipc/ipc_async_std/windows.rs
+++ b/veilid-tools/src/ipc/ipc_async_std/windows.rs
@@ -1 +1 @@
-compile_error!{"async-std compilation for windows is currently unsupported"}
\ No newline at end of file
+compile_error! {"async-std compilation for windows is currently unsupported"}