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-rw-r--r--tex/context/base/mkxl/strc-mat.mkxl8
1 files changed, 4 insertions, 4 deletions
diff --git a/tex/context/base/mkxl/strc-mat.mkxl b/tex/context/base/mkxl/strc-mat.mkxl
index 94a273f80..5f929b5db 100644
--- a/tex/context/base/mkxl/strc-mat.mkxl
+++ b/tex/context/base/mkxl/strc-mat.mkxl
@@ -144,15 +144,15 @@
\definelist[\v!formula]
-\permanent\defcsname\e!start\v!formula\endcsname{\strc_formulas_start_formula{}}
-\permanent\defcsname\e!stop \v!formula\endcsname{\strc_formulas_stop_formula}
+\permanent\protected\defcsname\e!start\v!formula\endcsname{\strc_formulas_start_formula{}}
+\permanent\protected\defcsname\e!stop \v!formula\endcsname{\strc_formulas_stop_formula}
\let\strc_formulas_start_formula\relax % defined later
\let\strc_formulas_stop_formula \relax % defined later
\permanent\tolerant\protected\def\defineformulaalternative[#1]#*[#2]#*[#3]%
- {\frozen\instance\defcsname\e!start#1\v!formula\endcsname{#2}%
- \frozen\instance\defcsname\e!stop #1\v!formula\endcsname{#3}}
+ {\frozen\instance\protected\defcsname\e!start#1\v!formula\endcsname{#2}%
+ \frozen\instance\protected\defcsname\e!stop #1\v!formula\endcsname{#3}}
% sp = single line paragraph sd = single line display
% mp = multi line paragraph md = multy line display