diff --git a/stoken.spec b/stoken.spec
index b6f123b..d8af83a 100644
--- a/stoken.spec
+++ b/stoken.spec
@@ -69,7 +69,7 @@ This package contains the graphical interface program for %{name}.
 %patch0 -p1 -b .no-static-cflags
 
 %build
-autoreconf -v --install
+autoreconf -v -f --install
 %configure --with-gtk
 make %{?_smp_mflags}