diff --git a/x11-libs/gtk-fortran/metadata.xml b/x11-libs/gtk-fortran/metadata.xml
index ca3bdc69a7..cf0213ddc0 100644
--- a/x11-libs/gtk-fortran/metadata.xml
+++ b/x11-libs/gtk-fortran/metadata.xml
@@ -14,4 +14,7 @@
 	<flag name="high-level">Build high-level interface to the gtk-fortran package</flag>
 	<flag name="plplot">Build with <pkg>sci-libs/plplot</pkg> support</flag>
 </use>
+<upstream>
+	<remote-id type="github">vmagnin/gtk-fortran</remote-id>
+</upstream>
 </pkgmetadata>