diff --git a/xalan-c.spec b/xalan-c.spec
index f37370d..0c9e35f 100644
--- a/xalan-c.spec
+++ b/xalan-c.spec
@@ -108,8 +108,11 @@ find docs samples src -type f -exec file '{}' '+' |
   xargs dos2unix --keepdate
 
 
-%build
+%conf
 %cmake %{?with_icu:-Dtranscoder=icu} -GNinja
+
+
+%build
 %cmake_build