diff --git a/Dockerfile b/Dockerfile
index 1e71c27..b540db4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -33,7 +33,8 @@ COPY assets/ ./assets/
 # - runtime-server: stdio MCP transport
 # - http-server: HTTP + HTML interface
 # - advanced-docx: advanced document operations
-RUN cargo build --release --features "runtime-server http-server advanced-docx"
+# - build-bin: enables building the docx-mcp binary
+RUN cargo build --release --features "runtime-server http-server advanced-docx build-bin"
 
 # ============================================================
 # Runtime Stage