diff --git a/kraken_ruby.gemspec b/kraken_ruby.gemspec
index 1022b60..48399df 100644
--- a/kraken_ruby.gemspec
+++ b/kraken_ruby.gemspec
@@ -14,6 +14,7 @@ Gem::Specification.new do |spec|
   spec.license       = "MIT"
 
   spec.files         = `git ls-files`.split($/)
+  spec.files         = spec.files - spec.files.grep(%r{\.gem$})
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]