diff --git a/native-turbo.spec b/native-turbo.spec
index 1dc7aab..77c4dbc 100644
--- a/native-turbo.spec
+++ b/native-turbo.spec
@@ -16,7 +16,7 @@ BuildRequires: ncurses-devel
 BuildRequires: rust rust-packaging cargo
 BuildRequires: kernel-devel
 
-%define kern_devel_ver  %(rpm -q --qf '%{VERSION}-%{RELEASE}' kernel-devel).%{_arch}
+%define kern_devel_ver %(ver=`rpm -qa|grep kernel-devel`;echo ${ver#*kernel-devel-})
 
 %description
 sysboost can merge ELF files to improve performance.