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-rw-r--r--lib/coderay/encoder.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/coderay/encoder.rb b/lib/coderay/encoder.rb
index 221cd58..f72e2f1 100644
--- a/lib/coderay/encoder.rb
+++ b/lib/coderay/encoder.rb
@@ -130,7 +130,7 @@ module CodeRay
# By default, it calls text_token or block_token, depending on
# whether +text+ is a String.
def token text, kind
- if text.is_a? ::String
+ if text.instance_of? ::String # Ruby 1.9: :open.is_a? String
text_token text, kind
elsif text.is_a? ::Symbol
block_token text, kind