diff --git a/docs/reference/swe-glib/Makefile.am b/docs/reference/swe-glib/Makefile.am
index 02f9b64..d3df76a 100644
--- a/docs/reference/swe-glib/Makefile.am
+++ b/docs/reference/swe-glib/Makefile.am
@@ -86,7 +86,7 @@ include $(top_srcdir)/gtk-doc.make
 
 # Other files to distribute
 # e.g. EXTRA_DIST += version.xml.in
-EXTRA_DIST +=
+EXTRA_DIST += version.xml.in
 
 # Files not to distribute
 # for --rebuild-types in $(SCAN_OPTIONS), e.g. $(DOC_MODULE).types