diff --git a/GConf2.spec b/GConf2.spec
index 195b5a6..66920e7 100644
--- a/GConf2.spec
+++ b/GConf2.spec
@@ -59,7 +59,7 @@ development using GConf.
 
 %build
 rm -f libtool
-libtoolize --force --co
+libtoolize --force --copy
 %configure
 make