diff --git a/audio/mixxx/mixxx.info b/audio/mixxx/mixxx.info
index 4d9d06a3df..3f45810e8b 100644
--- a/audio/mixxx/mixxx.info
+++ b/audio/mixxx/mixxx.info
@@ -5,6 +5,6 @@ DOWNLOAD="https://github.com/mixxxdj/mixxx/archive/release-2.2.4/mixxx-release-2
 MD5SUM="25bbebca0187254db4d1c53dc0bdd77d"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES="chromaprint faad2 libmodplug libmp4v2 libshout lilv opencore-amr opusfile portaudio portmidi protobuf qt5 rubberband speex vamp-plugin-sdk"
+REQUIRES="chromaprint faad2 libmodplug libmp4v2 libshout lilv opencore-amr opusfile portaudio portmidi protobuf3 qt5 rubberband speex vamp-plugin-sdk"
 MAINTAINER="Matteo Bernardini"
 EMAIL="ponce@slackbuilds.org"