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-rw-r--r--lib/rubygems/package/tar_header.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rubygems/package/tar_header.rb b/lib/rubygems/package/tar_header.rb
index 06e0cbd5a4..0bec8f4845 100644
--- a/lib/rubygems/package/tar_header.rb
+++ b/lib/rubygems/package/tar_header.rb
@@ -211,7 +211,7 @@ class Gem::Package::TarHeader
private
def calculate_checksum(header)
- header.bytes.sum
+ header.sum(0)
end
def header(checksum = @checksum)