diff --git a/src/UriBuilder.Fluent.UnitTests/ExtensionTests.cs b/src/UriBuilder.Fluent.UnitTests/ExtensionTests.cs
index 1b027d1..d59eaae 100644
--- a/src/UriBuilder.Fluent.UnitTests/ExtensionTests.cs
+++ b/src/UriBuilder.Fluent.UnitTests/ExtensionTests.cs
@@ -97,6 +97,15 @@ namespace FluentUriBuilder.Tests
             Assert.Equal(url.Host, "yodawg.com");
         }
 
+        [Fact]
+        public void AddParamWithNoValue()
+        {
+            var url = new UriBuilder("http://awesome.com")
+                    .WithParameter("awesome", "yodawg")
+                    .WithParameter("fun", null);
+            Assert.Equal("http://awesome.com/?awesome=yodawg&fun", url.Uri.ToString());
+        }
+
         [Fact]
         public void TestAddTwoUrlParameters()
         {