diff --git a/llvm-toolset-19.spec b/llvm-toolset-19.spec
index d9d79d713ae96feb424b6521f6c72691b34d8649..ef8e589aa1bd715da1807fd43fd620298566912f 100644
--- a/llvm-toolset-19.spec
+++ b/llvm-toolset-19.spec
@@ -149,7 +149,7 @@
 #region main package
 Name:		  llvm-toolset-%{maj_ver}
 Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
-Release:	4
+Release:	5
 Summary:	The Low Level Virtual Machine
 
 License:	NCSA
@@ -1269,7 +1269,12 @@ install -p -m644 clang/bindings/python/clang/* %{buildroot}%{python3_sitelib}/cl
 %py_byte_compile %{__python3} %{buildroot}%{python3_sitelib}/clang
 
 # install scanbuild-py to python sitelib.
-mv %{buildroot}%{install_libdir}/{libear,libscanbuild} %{buildroot}%{python3_sitelib}
+### scan-build-py installation path changed to unprefixed /usr/lib/ for llvm 20+ in [1]
+### and backported to 19.x in [2]
+### 1. https://github.com/llvm/llvm-project/pull/106612
+### 2. https://github.com/llvm/llvm-project/pull/106853
+
+mv %{buildroot}%{install_prefix}/lib/{libear,libscanbuild} %{buildroot}%{python3_sitelib}
 # Cannot use {libear,libscanbuild} style expansion in py_byte_compile.
 %py_byte_compile %{__python3} %{buildroot}%{python3_sitelib}/libear
 %py_byte_compile %{__python3} %{buildroot}%{python3_sitelib}/libscanbuild
@@ -2805,7 +2810,10 @@ fi
 #endregion files
 
 %changelog
-* Mon Mar 3 2025 liyunfei liyunfei33@huawei.com - 19.1.7-4
+* Mon Mar 03 2025 jchzhou <zhoujiacheng@iscas.ac.cn> - 19.1.7-5
+- Fix packaging issues as sys_llvm, adapt for scan-build install path changes
+
+* Mon Mar 03 2025 liyunfei <liyunfei33@huawei.com> - 19.1.7-4
 - Remove python pack without sys_llvm
 
 * Fri Feb 28 2025 jchzhou <zhoujiacheng@iscas.ac.cn> - 19.1.7-3