diff --git a/crates/ruvector-cli/src/mcp_server.rs b/crates/ruvector-cli/src/mcp_server.rs
index 4379910293..479ef2f9c9 100644
--- a/crates/ruvector-cli/src/mcp_server.rs
+++ b/crates/ruvector-cli/src/mcp_server.rs
@@ -48,10 +48,12 @@ async fn main() -> Result<()> {
     // Initialize logging
     if cli.debug {
         tracing_subscriber::fmt()
+            .with_writer(std::io::stderr)
             .with_env_filter("ruvector=debug")
             .init();
     } else {
         tracing_subscriber::fmt()
+            .with_writer(std::io::stderr)
             .with_env_filter("ruvector=info")
             .init();
     }