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-rw-r--r--pygments/lexers/elm.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pygments/lexers/elm.py b/pygments/lexers/elm.py
index 0fa36367..22a10bd9 100644
--- a/pygments/lexers/elm.py
+++ b/pygments/lexers/elm.py
@@ -27,7 +27,7 @@ class ElmLexer(RegexLexer):
filenames = ['*.elm']
mimetypes = ['text/x-elm']
- validName = r'[a-z_][a-zA-Z_\']*'
+ validName = r'[a-z_][a-zA-Z0-9_\']*'
specialName = r'^main '