diff --git a/redhat/libraries/libtdeldap/libtdeldap-14.0.0.spec b/redhat/libraries/libtdeldap/libtdeldap-14.0.0.spec
index 44fc7abe8..a0506c382 100644
--- a/redhat/libraries/libtdeldap/libtdeldap-14.0.0.spec
+++ b/redhat/libraries/libtdeldap/libtdeldap-14.0.0.spec
@@ -101,6 +101,12 @@ BuildRequires:	heimdal-devel
 BuildRequires:	libheimdal-devel
 %endif
 
+# UDEV support
+%if 0%{?fedora} || 0%{?mdkversion} || 0%{?mgaversion} || 0%{?suse_version} || 0%{?rhel} >= 6
+%define with_tdehwlib 1
+BuildRequires:	libudev-devel
+%endif
+
 
 %description
 LDAP interface library for TDE management modules.