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-rw-r--r--sigmodr/doc/index.docbook3
1 files changed, 2 insertions, 1 deletions
diff --git a/sigmodr/doc/index.docbook b/sigmodr/doc/index.docbook
index f4f38c3c..561ff751 100644
--- a/sigmodr/doc/index.docbook
+++ b/sigmodr/doc/index.docbook
@@ -17,7 +17,8 @@
<!ENTITY % English "INCLUDE" > <!-- change language only here -->
<!ENTITY % addindex "IGNORE" >
]>
-<book>
+
+<book lang="&language;">
<bookinfo>