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-rw-r--r--pygments/lexers/math.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pygments/lexers/math.py b/pygments/lexers/math.py
index d69a8523..77067f35 100644
--- a/pygments/lexers/math.py
+++ b/pygments/lexers/math.py
@@ -668,7 +668,7 @@ class ScilabLexer(RegexLexer):
_scilab_builtins.macros_kw
) + r')\b', Name.Builtin),
- ("(" + "|".join(_scilab_builtins.builtin_consts) + r')\b',
+ (r'(%s)\b' % "|".join(map(re.escape, _scilab_builtins.builtin_consts)),
Name.Constant),
# operators: