diff --git a/shim.spec b/shim.spec
index 55518e4b7a7ea8dfbeadb62ea4d5057dcdb04674..42f03e59988af01417495a565984be7a93ecce89 100644
--- a/shim.spec
+++ b/shim.spec
@@ -15,14 +15,14 @@
 %global _binaries_in_noarch_packages_terminate_build 0
 %undefine _debuginfo_subpackages
 
-%global efidir %(eval echo $(grep ^ID= /etc/os-release | sed -e 's/^ID=//' ))
+%global efidir %{_vendor}
 %global shimdir %{_datadir}/shim/%{version}-%{release}/%{efi_arch}
 %global shimefivendor /boot/efi/EFI/%{efi_vendor}/
 %global shimBOOT  /boot/efi/EFI/BOOT/
 
 Name:	   	   shim
 Version:	   15
-Release:       19
+Release:       20
 Summary:	   First-stage UEFI bootloader
 ExclusiveArch: x86_64 aarch64
 License:	   BSD
@@ -130,6 +130,9 @@ cd ..
 /usr/src/debug/%{name}-%{version}-%{release}/*
 
 %changelog
+* Wed Mar 17 2021 yangzhuangzhuang <yangzhuangzhuang1@huawei.com> - 15-20
+- modify efidir to _vendor
+
 * Mon Jun 22 2020 leiju <leiju4@huawei.com> - 15-19
 - fix unaligned point value with GCC9