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-rw-r--r--lib/redcarpet/render/gitlab_html.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/redcarpet/render/gitlab_html.rb b/lib/redcarpet/render/gitlab_html.rb
index 318adbf1894..d9c2d3b626d 100644
--- a/lib/redcarpet/render/gitlab_html.rb
+++ b/lib/redcarpet/render/gitlab_html.rb
@@ -12,7 +12,7 @@ class Redcarpet::Render::GitlabHTML < Redcarpet::Render::HTML
def block_code(code, language)
options = { options: {encoding: 'utf-8'} }
lexer = Pygments::Lexer.find(language) # language can be an alias
- options.merge!(lexer: lexer.name.downcase) if lexer # downcase is required
+ options.merge!(lexer: lexer.aliases[0].downcase) if lexer # downcase is required
# New lines are placed to fix an rendering issue
# with code wrapped inside <h1> tag for next case: