diff --git a/BUILD.gn b/BUILD.gn
index 657ecef0..074b248c 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -31,6 +31,7 @@ ohos_cargo_crate("lib") {
   ]
   build_root = "build.rs"
   build_sources = [ "build.rs" ]
+  module_output_extension = ".rlib"
   part_name = "rust_libc"
   subsystem_name = "thirdparty"
 }