diff --git a/inferno_core.gemspec b/inferno_core.gemspec
index 18d139e12..8e67e459b 100644
--- a/inferno_core.gemspec
+++ b/inferno_core.gemspec
@@ -57,6 +57,7 @@ Gem::Specification.new do |spec|
     'spec/support/factory_bot.rb',
     Dir['spec/factories/**/*.rb'],
     Dir['spec/fixtures/**/*.rb'],
+    Dir['spec/shared/**/*.rb'],
     Dir['spec/*.rb']
   ].flatten