diff --git a/configure.ac b/configure.ac
index 2c2665c..1d39427 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ PKG_CHECK_MODULES(DBUS_GLIB, "dbus-glib-1")
 AC_SUBST(DBUS_GLIB_LIBS)
 AC_SUBST(DBUS_GLIB_CFLAGS)
 
-PKG_CHECK_MODULES(POLKIT, "polkit polkit-dbus")
+PKG_CHECK_MODULES(POLKIT, polkit >= 0.8 polkit-dbus)
 AC_SUBST(POLKIT_LIBS)
 AC_SUBST(POLKIT_CFLAGS)