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-rw-r--r--ext/ripper/lib/ripper/lexer.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/ripper/lib/ripper/lexer.rb b/ext/ripper/lib/ripper/lexer.rb
index 669314ad92..350b513c25 100644
--- a/ext/ripper/lib/ripper/lexer.rb
+++ b/ext/ripper/lib/ripper/lexer.rb
@@ -67,7 +67,7 @@ class Ripper
def on_heredoc_dedent(v, w)
@buf.last.each do |e|
- if e.event == :on_tstring_content
+ if Elem === e and e.event == :on_tstring_content
if (n = dedent_string(e.tok, w)) > 0
e.pos[1] += n
end