diff --git a/Makefile b/Makefile
index 280ebac..47eb030 100644
--- a/Makefile
+++ b/Makefile
@@ -97,5 +97,6 @@ install: ot-recorder ocat
 	cp -R docroot/* $(DESTDIR)$(DOCROOT)/
 	install -m 0755 ot-recorder $(DESTDIR)$(INSTALLDIR)/sbin
 	install -m 0755 ocat $(DESTDIR)$(INSTALLDIR)/bin
+	$(DESTDIR)$(INSTALLDIR)/bin/ocat --load=topic2tid < /dev/null
 	# mkdir -p $(DESTDIR)/etc/systemd/system/
 	# install --mode 0644 etc/ot-recorder.service $(DESTDIR)/etc/systemd/system/ot-recorder.service