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-rw-r--r--lib/rubygems/version.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rubygems/version.rb b/lib/rubygems/version.rb
index ff4a7bf079..21ea9565b4 100644
--- a/lib/rubygems/version.rb
+++ b/lib/rubygems/version.rb
@@ -22,7 +22,7 @@ class Gem::Version
def self.correct?(version)
case version
- when Integer, /\A\s*(\d+(\.\d+)*)*\s*\z/ then true
+ when Integer, /\A\s*(\d+(\.-?\d+)*)*\s*\z/ then true
else false
end
end