diff --git a/Shorewall6/install.sh b/Shorewall6/install.sh
index cd598ad34..811e611df 100755
--- a/Shorewall6/install.sh
+++ b/Shorewall6/install.sh
@@ -371,6 +371,26 @@ if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall6/tcrules ]; then
     echo "TC Rules file installed as ${PREFIX}/etc/shorewall6/tcrules"
 fi
 
+#
+# Install the TC Interfaces file
+#
+run_install $OWNERSHIP -m 0644 tcinterfaces ${PREFIX}/usr/share/shorewall6/configfiles/tcinterfaces
+
+if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall6/tcinterfaces ]; then
+    run_install $OWNERSHIP -m 0600 tcinterfaces ${PREFIX}/etc/shorewall6/tcinterfaces
+    echo "TC Interfaces file installed as ${PREFIX}/etc/shorewall6/tcinterfaces"
+fi
+
+#
+# Install the TC Priority file
+#
+run_install $OWNERSHIP -m 0644 tcpri ${PREFIX}/usr/share/shorewall6/configfiles/tcpri
+
+if [ -z "$CYGWIN" -a ! -f ${PREFIX}/etc/shorewall6/tcpri ]; then
+    run_install $OWNERSHIP -m 0600 tcpri ${PREFIX}/etc/shorewall6/tcpri
+    echo "TC Priority file installed as ${PREFIX}/etc/shorewall6/tcpri"
+fi
+
 #
 # Install the TOS file
 #