diff --git a/mcp_codebase.py b/mcp_codebase.py
index 0262ff4..7ccd27f 100644
--- a/mcp_codebase.py
+++ b/mcp_codebase.py
@@ -1559,7 +1559,7 @@ def parse_rust_file_cached(filepath_str: str, file_hash: str) -> tuple:
 
     logger.info(f"🔧 Parsing Rust file: {filepath}")
 
-    rust_helper = Path("./tools/target/release/rust_parser")
+    rust_helper = Path("./tools/target/release/parse_rust_ast")
     if not rust_helper.is_file():
         logger.warning(f"Rust parser binary not found: {rust_helper}. Using fallback whole-file chunk for {filepath}")
         code = filepath.read_text(encoding="utf-8")