diff --git a/perl-ExtUtils-CBuilder.spec b/perl-ExtUtils-CBuilder.spec
index 6ca028c..1cae070 100644
--- a/perl-ExtUtils-CBuilder.spec
+++ b/perl-ExtUtils-CBuilder.spec
@@ -95,7 +95,7 @@ cd %{_libexecdir}/%{name} && exec prove -I . -j "$(getconf _NPROCESSORS_ONLN)"
 EOF
 chmod +x %{buildroot}/%{_libexecdir}/%{name}/test
 
-%{_fixperms} $RPM_BUILD_ROOT/*
+%{_fixperms} %{buildroot}/*
 
 %check
 make test