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-rw-r--r--lisp/textmodes/tex-mode.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/textmodes/tex-mode.el b/lisp/textmodes/tex-mode.el
index e52cb73964f..953b3d29ac7 100644
--- a/lisp/textmodes/tex-mode.el
+++ b/lisp/textmodes/tex-mode.el
@@ -263,7 +263,7 @@ says which mode to use."
(beginning-of-line)
(search-forward "%" search-end t))))))
(if (and slash (not comment))
- (setq mode (if (looking-at "documentstyle\\|documentclass\\|begin\\b")
+ (setq mode (if (looking-at "documentstyle\\|documentclass\\|begin\\b\\|NeedsTeXFormat{LaTeX")
(if (looking-at
"document\\(style\\|class\\)\\(\\[.*\\]\\)?{slides}")
'slitex-mode