diff --git a/erlang.spec b/erlang.spec
index 1739cc1..9ff3226 100644
--- a/erlang.spec
+++ b/erlang.spec
@@ -86,7 +86,8 @@ Patch12: otp-0012-Remove-strange-name-field-in-efile_drv.c-as-it-upset.patch
 Patch13: otp-0013-Remove-rpath-from-esock_ssl.patch
 # end of autogenerated patch tag list
 
-BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+# BuildRoot not strictly needed since F10, but keep it for spec file robustness
+BuildRoot:	%(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 
 BuildRequires:	ncurses-devel
 BuildRequires:	openssl-devel