diff --git a/build/ci/Dockerfile b/build/ci/Dockerfile
index 368d9c5e..b4f7b72c 100644
--- a/build/ci/Dockerfile
+++ b/build/ci/Dockerfile
@@ -6,6 +6,7 @@ RUN apt-get install -y \
   git \
   gtk-sharp3-gapi \
   intltool \
+  libappindicator3-0.1-cil-dev \
   libdbus-glib2.0-cil-dev \
   libgtk3.0-cil-dev \
   libsoup2.4-dev \