diff --git a/mawk.spec b/mawk.spec
index 8de5ebc..ca58321 100644
--- a/mawk.spec
+++ b/mawk.spec
@@ -9,6 +9,7 @@ Group:		Applications/Text
 License:	GPLv2
 URL:		http://invisible-island.net/mawk/
 Source0:	ftp://invisible-island.net/mawk/%{name}-%{version}-%{pver}.tgz
+BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 %description
 mawk is an interpreter for the AWK programming language.  The AWK language is