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-rw-r--r--lib/coderay/scanners/scheme.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/coderay/scanners/scheme.rb b/lib/coderay/scanners/scheme.rb
index 2aee223..c869a30 100644
--- a/lib/coderay/scanners/scheme.rb
+++ b/lib/coderay/scanners/scheme.rb
@@ -6,7 +6,7 @@ module CodeRay
class Scheme < Scanner
register_for :scheme
- file_extension :scm
+ file_extension 'scm'
CORE_FORMS = %w[
lambda let let* letrec syntax-case define-syntax let-syntax