diff --git a/nymea-plugins.pro b/nymea-plugins.pro
index b24bdf2..14118db 100644
--- a/nymea-plugins.pro
+++ b/nymea-plugins.pro
@@ -51,6 +51,7 @@ PLUGIN_DIRS = \
     udpcommander        \
     unifi               \
     unitec              \
+    usbrelay            \
     wakeonlan           \
     wemo                \
     ws2812fx            \