diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37da1f5..5bb7afb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ##### Enhancements
 
-* Add User-Agent to `cURL` requests when downloading source via the `:http` download strategy, unless one was provided by the `:headers` option.
+* Add User-Agent to `cURL` requests when downloading source via the `:http` download strategy, unless one was provided by the `:headers` option.  
   [Sean Reinhardt](https://github.com/seanreinhardtapps)
   [#9619](https://github.com/CocoaPods/CocoaPods/issues/9619)
 
diff --git a/lib/cocoapods-downloader/base.rb b/lib/cocoapods-downloader/base.rb
index 8f9aba3..91b198d 100644
--- a/lib/cocoapods-downloader/base.rb
+++ b/lib/cocoapods-downloader/base.rb
@@ -129,7 +129,7 @@ def checkout_options
       # @return [String] the User-Agent string.
       #
       def self.user_agent_string(base_module = Pod)
-        pods_version = base_module.const_defined?("VERSION") ? "CocoaPods/#{base_module::VERSION};" : ''
+        pods_version = base_module.const_defined?("VERSION") ? "CocoaPods/#{base_module::VERSION} " : ''
         "#{pods_version}cocoapods-downloader/#{Pod::Downloader::VERSION}"
       end
 
diff --git a/spec/base_spec.rb b/spec/base_spec.rb
index de34ec8..f2128b9 100644
--- a/spec/base_spec.rb
+++ b/spec/base_spec.rb
@@ -27,7 +27,7 @@ module TestModuleNoVersion
         module TestModuleWithVersion
           VERSION = 'a.b.c'.freeze
         end
-        Base.user_agent_string(TestModuleWithVersion).should == "CocoaPods/#{TestModuleWithVersion::VERSION};cocoapods-downloader/#{Pod::Downloader::VERSION}"
+        Base.user_agent_string(TestModuleWithVersion).should == "CocoaPods/#{TestModuleWithVersion::VERSION} cocoapods-downloader/#{Pod::Downloader::VERSION}"
       end
     end
   end