diff --git a/lisp/org-latex.el b/lisp/org-latex.el
index 6d465010e..d09ca48ef 100644
--- a/lisp/org-latex.el
+++ b/lisp/org-latex.el
@@ -1902,10 +1902,14 @@ The conversion is made depending of STRING-BEFORE and STRING-AFTER."
                          'org-label raw-table)
                   longtblp (and attr (stringp attr)
                                 (string-match "\\<longtable\\>" attr))
-		  tblenv (if (and attr (stringp attr)
-				  (or (string-match (regexp-quote "table*") attr)
-				      (string-match "\\<multicolumn\\>" attr)))
-			     "table*" "table")
+		  tblenv (if (and attr (stringp attr))
+			     (cond ((string-match "\\<sidewaystable\\>" attr)
+				    "sidewaystable")
+				   ((or (string-match (regexp-quote "table*") attr)
+					(string-match "\\<multicolumn\\>" attr))
+				    "table*")
+				   (t "table"))
+			   "table")
 		  tabular-env
 		  (if (and attr (stringp attr)
 			   (string-match "\\(tabular.\\)" attr))