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-rw-r--r--activerecord/lib/active_record/schema_dumper.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index 6eadba6238..a3e9c5ebba 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -40,7 +40,7 @@ module ActiveRecord
def header(stream)
define_params = @version ? ":version => #{@version}" : ""
- if !stream.external_encoding.nil?
+ if stream.respond_to?(:external_encoding) && !stream.external_encoding.nil?
stream.puts "# encoding: #{stream.external_encoding.name}"
end