diff --git a/openssl.gemspec b/openssl.gemspec
index e0080f2e2..ef5fff544 100644
--- a/openssl.gemspec
+++ b/openssl.gemspec
@@ -21,4 +21,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake-compiler"
   spec.add_development_dependency "test-unit", "~> 3.0"
   spec.add_development_dependency "rdoc"
+
+  spec.metadata["msys2_mingw_dependencies"] = "openssl"
 end