diff --git a/bindep.txt b/bindep.txt
index c87ef96122..80de701b39 100644
--- a/bindep.txt
+++ b/bindep.txt
@@ -69,6 +69,9 @@ mysql-server [platform:dpkg]
 gettext [test doc]
 # this is needed to build the FSM diagram
 graphviz [!platform:gentoo test doc]
+# libsrvg2 is needed for sphinxcontrib-svg2pdfconverter in docs builds.
+librsvg2-tools [doc platform:rpm]
+librsvg2-bin [doc platform:dpkg]
 
 # these are needed to build a deploy ramdisk