diff --git a/desktop/gnome/base/yelp-tools/pspec.xml b/desktop/gnome/base/yelp-tools/pspec.xml
index 5a11601601..3676957e4f 100755
--- a/desktop/gnome/base/yelp-tools/pspec.xml
+++ b/desktop/gnome/base/yelp-tools/pspec.xml
@@ -19,6 +19,7 @@
             <Dependency>itstool</Dependency>
             <Dependency>libxslt-devel</Dependency>
             <Dependency>yelp-xsl-devel</Dependency>
+            <Dependency>python3-lxml</Dependency>
         </BuildDependencies>
     </Source>