diff --git a/src/Text/Pandoc/Writers/Docx.hs b/src/Text/Pandoc/Writers/Docx.hs
index 6cc90f4d9..a8f82c0ec 100644
--- a/src/Text/Pandoc/Writers/Docx.hs
+++ b/src/Text/Pandoc/Writers/Docx.hs
@@ -1116,7 +1116,8 @@ inlineToOpenXML' opts (Math mathType str) = do
   case writeOMML displayType <$> readTeX str of
         Right r -> return [r]
         Left  e -> do
-          warn $ "Cannot convert the following TeX math, skipping:\n" ++ str
+          warn $ "Cannot convert the following TeX math, skipping:\n" ++ str ++
+                 "\n" ++ e
           inlinesToOpenXML opts (texMathToInlines mathType str)
 inlineToOpenXML' opts (Cite _ lst) = inlinesToOpenXML opts lst
 inlineToOpenXML' opts (Code attrs str) = do