diff --git a/modules/swagger-codegen/src/main/resources/ruby/swagger/configuration.mustache b/modules/swagger-codegen/src/main/resources/ruby/swagger/configuration.mustache
index 485bcb3cf81..5ed22afb151 100644
--- a/modules/swagger-codegen/src/main/resources/ruby/swagger/configuration.mustache
+++ b/modules/swagger-codegen/src/main/resources/ruby/swagger/configuration.mustache
@@ -7,6 +7,14 @@ module {{moduleName}}
                     :scheme, :host, :base_path, :user_agent, :debug, :logger, :inject_format,
                     :force_ending_format, :camelize_params, :user_agent, :verify_ssl
 
+      # Set this to customize the certificate file to verify the peer.
+      #
+      # @return [String] the path to the certificate file
+      #
+      # @see The `cainfo` option of Typhoeus, `--cert` option of libcurl. Related source code:
+      #   https://github.com/typhoeus/typhoeus/blob/master/lib/typhoeus/easy_factory.rb#L145
+      attr_accessor :ssl_ca_cert
+
       # Defaults go in here..
       def initialize
         @format = 'json'
diff --git a/modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache b/modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache
index ef2103766e4..c05167c7fdc 100644
--- a/modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache
+++ b/modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache
@@ -166,6 +166,7 @@ module {{moduleName}}
       def make
         request_options = {
           :ssl_verifypeer => Swagger.configuration.verify_ssl,
+          :cainfo => Swagger.configuration.ssl_ca_cert,
           :headers => self.headers.stringify_keys,
           :verbose => Swagger.configuration.debug
         }
diff --git a/samples/client/petstore/ruby/lib/swagger_client/swagger/configuration.rb b/samples/client/petstore/ruby/lib/swagger_client/swagger/configuration.rb
index b4d8b33d90d..9ed1673eff1 100644
--- a/samples/client/petstore/ruby/lib/swagger_client/swagger/configuration.rb
+++ b/samples/client/petstore/ruby/lib/swagger_client/swagger/configuration.rb
@@ -7,6 +7,14 @@ module SwaggerClient
                     :scheme, :host, :base_path, :user_agent, :debug, :logger, :inject_format,
                     :force_ending_format, :camelize_params, :user_agent, :verify_ssl
 
+      # Set this to customize the certificate file to verify the peer.
+      #
+      # @return [String] the path to the certificate file
+      #
+      # @see The `cainfo` option of Typhoeus, `--cert` option of libcurl. Related source code:
+      #   https://github.com/typhoeus/typhoeus/blob/master/lib/typhoeus/easy_factory.rb#L145
+      attr_accessor :ssl_ca_cert
+
       # Defaults go in here..
       def initialize
         @format = 'json'
diff --git a/samples/client/petstore/ruby/lib/swagger_client/swagger/request.rb b/samples/client/petstore/ruby/lib/swagger_client/swagger/request.rb
index 4cc88016500..df0987b0d22 100644
--- a/samples/client/petstore/ruby/lib/swagger_client/swagger/request.rb
+++ b/samples/client/petstore/ruby/lib/swagger_client/swagger/request.rb
@@ -165,6 +165,7 @@ module SwaggerClient
       def make
         request_options = {
           :ssl_verifypeer => Swagger.configuration.verify_ssl,
+          :cainfo => Swagger.configuration.ssl_ca_cert,
           :headers => self.headers.stringify_keys,
           :verbose => Swagger.configuration.debug
         }