diff --git a/programming/misc/libsigc++3/pspec.xml b/programming/misc/libsigc++3/pspec.xml
index 36386f177e..69aeef812d 100644
--- a/programming/misc/libsigc++3/pspec.xml
+++ b/programming/misc/libsigc++3/pspec.xml
@@ -15,6 +15,7 @@
         <Archive sha1sum="64db1bd1e580dfdea2f282504a316626d488ae3d" type="tarxz">mirrors://gnome/libsigc++/3.4/libsigc++-3.4.0.tar.xz</Archive>
         <BuildDependencies>
             <Dependency>mm-common</Dependency>
+            <Dependency>docbook-xsl</Dependency>
         </BuildDependencies>
     </Source>