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-rw-r--r--src/Text/Pandoc/Writers/Docbook.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/Text/Pandoc/Writers/Docbook.hs b/src/Text/Pandoc/Writers/Docbook.hs
index 294c043e2..996e50e6b 100644
--- a/src/Text/Pandoc/Writers/Docbook.hs
+++ b/src/Text/Pandoc/Writers/Docbook.hs
@@ -181,6 +181,7 @@ colHeadsToDocbook :: WriterOptions
-> [Double]
-> [[Block]]
-> Doc
+colHeadsToDocbook _ _ _ hs | all null hs = empty
colHeadsToDocbook opts alignStrings widths headers =
let heads = zipWith3 (\align width item ->
tableItemToDocbook opts "th" align width item)