Do not try to pop from an empty stack

[features.git] / src / Paragraph.cpp

diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index da97d12ccd86bbeb8b3efdd7670092aa50b7b007..a08f3ac0074ec613bac5e691a4f4c7fa2eb45753 100644 (file)
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -2805,7 +2805,8 @@ void Paragraph::latex(BufferParams const & bparams,
                        string end_tag = subst(lang_end_command, "$$lang", running_lang);
                        os << from_ascii(end_tag);
                        column += end_tag.length();
-                       popLanguageName();
+                       if (!languageStackEmpty())
+                               popLanguageName();
                }
 
                // Switch file encoding if necessary (and allowed)