diff --git a/programming/library/libportal/pspec.xml b/programming/library/libportal/pspec.xml
index f8b1965873..45fb6d3c5f 100644
--- a/programming/library/libportal/pspec.xml
+++ b/programming/library/libportal/pspec.xml
@@ -23,6 +23,7 @@
                     <Dependency>qt5-base-devel</Dependency>
                     <Dependency>qt5-x11extras-devel</Dependency>
                     <Dependency>glib2-devel</Dependency>
+            <Dependency>gi-docgen</Dependency>
             <Dependency>gobject-introspection-devel</Dependency>
         </BuildDependencies>
     </Source>