diff --git a/configure.ac b/configure.ac
index 9dea70d..8b3cdb4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -226,7 +226,7 @@ AM_CONDITIONAL(MONITOR, test "${enable_monitor}" != "no")
 
 AC_ARG_ENABLE(udev, AS_HELP_STRING([--disable-udev],
 		[disable udev device support]), [enable_udev=${enableval}])
-if (test "${enable_tools}" != "no" && test "${enable_udev}" != "no"); then
+if (test "${enable_udev}" != "no"); then
 	PKG_CHECK_MODULES(UDEV, libudev >= 196)
 	AC_DEFINE(HAVE_UDEV, 1, [Define to 1 if udev is required])
 fi