diff --git a/virtrust/docs/001-introduction.md b/virtrust/docs/001-introduction.md
index b204e8ffdb98569c078993d07776b0ee4dbbc24a..6a9a82615a9abad21514fc6246268e5612ec8e1b 100644
--- a/virtrust/docs/001-introduction.md
+++ b/virtrust/docs/001-introduction.md
@@ -25,7 +25,7 @@ sudo dnf install gcc g++ cmake make
 
 # 开发库
 sudo dnf install grpc grpc-devel grpc-plugins protobuf-devel protobuf-compiler
-sudo dnf install libboundscheck-devel
+sudo dnf install libboundscheck
 
 # 运行时依赖
 sudo dnf install libxml2-devel libguestfs-devel openssl-devel libvirt-devel
diff --git a/virtrust/rpm/TSB-agent.spec b/virtrust/rpm/TSB-agent.spec
index 8b0d9298631dd32f3ee8ccc208b76e76d72e7841..683dae18f10e0e6b61e3bfc2a39231f833d76f33 100644
--- a/virtrust/rpm/TSB-agent.spec
+++ b/virtrust/rpm/TSB-agent.spec
@@ -64,7 +64,7 @@ tar -xzf %{SOURCE4} -C "$DEPS_SRC/spdlog" --strip-components=1
 mkdir -p "$DEPS_SRC/libboundscheck-src"
 tar -xzf %{SOURCE5} -C "$DEPS_SRC/libboundscheck-src" --strip-components=1
 
-%global root_dir    %{name}-%{version}
+%global root_dir    %{_builddir}/%{name}-%{version}
 %global build_dir   %{_builddir}/%{name}-%{version}/build
 %global lib_out_dir %{build_dir}/lib64
 %global bin_out_dir %{build_dir}/bin
diff --git a/virtrust/rpm/build_rpm.sh b/virtrust/rpm/build_rpm.sh
index fab7d63cd7635e763165cf6cfedbd412501b8578..d4021a17cad29ce6071453c976d395d769b9542a 100644
--- a/virtrust/rpm/build_rpm.sh
+++ b/virtrust/rpm/build_rpm.sh
@@ -111,7 +111,6 @@ echo "==> Preparing rpmbuild tree"
 RPMBUILD_ROOT="$HOME/rpmbuild"
 mkdir -p "$RPMBUILD_ROOT"/{SPECS,SRPMS,RPMS,BUILD,BUILDROOT}
 
-# 可以直接用仓库里的 spec，不必复制，但有些人喜欢 copy 一份到 SPECS 里：
 cp -f "$SPEC_FILE" "$RPMBUILD_ROOT/SPECS/"
 
 echo "==> Running rpmbuild"