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-rw-r--r--support/TeX4ht/source/tex4ht-mathml.tex4
1 files changed, 2 insertions, 2 deletions
diff --git a/support/TeX4ht/source/tex4ht-mathml.tex b/support/TeX4ht/source/tex4ht-mathml.tex
index 9b6f23c04b..0569dde434 100644
--- a/support/TeX4ht/source/tex4ht-mathml.tex
+++ b/support/TeX4ht/source/tex4ht-mathml.tex
@@ -1,4 +1,4 @@
-% $Id: tex4ht-mathml.tex 1371 2023-09-20 12:19:50Z michal_h21 $$
+% $Id: tex4ht-mathml.tex 1374 2023-09-25 14:17:53Z michal_h21 $$
% compile 3 times: latex tex4ht-mathltx
% or xhlatex tex4ht-mathltx "html,3,sections+"
%
@@ -1866,7 +1866,7 @@ It will add the mathvariant tag to the \verb'<math>' element.
\<mathversion config\><<<
\append:defI\mathversion{%
% \a:DviMathML is executed at the beginning of math \a:@math is hook for attributes. we need to append out tags to it
- \Configure{DviMathML}{\append:def\a:@math{\expandafter\csname :mathversion-\math@version\endcsname}}{}%
+ \Configure{DviMathML}{\append:def\a:@math{\ifcsname :mathversion-\math@version\endcsname\expandafter\csname :mathversion-\math@version\endcsname\fi}}{}%
}
>>>