diff --git a/gnome-shell-extension-panel-osd.spec b/gnome-shell-extension-panel-osd.spec
index 20d890c..d612823 100644
--- a/gnome-shell-extension-panel-osd.spec
+++ b/gnome-shell-extension-panel-osd.spec
@@ -30,7 +30,7 @@ messages at any (configurable) place on the (primary) monitor.
 
 %build
 NOCONFIGURE=1 ./autogen.sh
-%configure --prefix=%{_prefix} GIT_VERSION=%{checkout}
+%configure GIT_VERSION=%{checkout}
 make %{?_smp_mflags}
 
 %install