diff --git a/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilder.cs b/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilder.cs
index 34e59d3318..10a50cb34d 100644
--- a/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilder.cs
+++ b/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilder.cs
@@ -67,7 +67,7 @@ namespace Microsoft.AspNet.Html
         }
 
         /// <inheritdoc />
-        public IHtmlContentBuilder Append(IHtmlContent htmlContent)
+        public IHtmlContentBuilder AppendHtml(IHtmlContent htmlContent)
         {
             if (htmlContent == null)
             {
diff --git a/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilderExtensions.cs b/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilderExtensions.cs
index 5d0b82dd5e..2ff745cdf3 100644
--- a/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilderExtensions.cs
+++ b/src/Microsoft.AspNet.Html.Abstractions/HtmlContentBuilderExtensions.cs
@@ -48,7 +48,7 @@ namespace Microsoft.AspNet.Html
                 throw new ArgumentNullException(nameof(args));
             }
 
-            builder.Append(new HtmlFormatString(format, args));
+            builder.AppendHtml(new HtmlFormatString(format, args));
             return builder;
         }
 
@@ -88,7 +88,7 @@ namespace Microsoft.AspNet.Html
                 throw new ArgumentNullException(nameof(args));
             }
 
-            builder.Append(new HtmlFormatString(formatProvider, format, args));
+            builder.AppendHtml(new HtmlFormatString(formatProvider, format, args));
             return builder;
         }
 
@@ -104,7 +104,7 @@ namespace Microsoft.AspNet.Html
                 throw new ArgumentNullException(nameof(builder));
             }
 
-            builder.Append(HtmlEncodedString.NewLine);
+            builder.AppendHtml(HtmlEncodedString.NewLine);
             return builder;
         }
 
@@ -123,7 +123,7 @@ namespace Microsoft.AspNet.Html
             }
 
             builder.Append(unencoded);
-            builder.Append(HtmlEncodedString.NewLine);
+            builder.AppendHtml(HtmlEncodedString.NewLine);
             return builder;
         }
 
@@ -140,8 +140,8 @@ namespace Microsoft.AspNet.Html
                 throw new ArgumentNullException(nameof(builder));
             }
 
-            builder.Append(content);
-            builder.Append(HtmlEncodedString.NewLine);
+            builder.AppendHtml(content);
+            builder.AppendHtml(HtmlEncodedString.NewLine);
             return builder;
         }
 
@@ -160,7 +160,7 @@ namespace Microsoft.AspNet.Html
             }
 
             builder.AppendHtml(encoded);
-            builder.Append(HtmlEncodedString.NewLine);
+            builder.AppendHtml(HtmlEncodedString.NewLine);
             return builder;
         }
 
@@ -197,7 +197,7 @@ namespace Microsoft.AspNet.Html
             }
 
             builder.Clear();
-            builder.Append(content);
+            builder.AppendHtml(content);
             return builder;
         }
 
diff --git a/src/Microsoft.AspNet.Html.Abstractions/IHtmlContentBuilder.cs b/src/Microsoft.AspNet.Html.Abstractions/IHtmlContentBuilder.cs
index de4b9ebd90..6b0a6d6571 100644
--- a/src/Microsoft.AspNet.Html.Abstractions/IHtmlContentBuilder.cs
+++ b/src/Microsoft.AspNet.Html.Abstractions/IHtmlContentBuilder.cs
@@ -13,7 +13,7 @@ namespace Microsoft.AspNet.Html
         /// </summary>
         /// <param name="content">The <see cref="IHtmlContent"/> to append.</param>
         /// <returns>The <see cref="IHtmlContentBuilder"/>.</returns>
-        IHtmlContentBuilder Append(IHtmlContent content);
+        IHtmlContentBuilder AppendHtml(IHtmlContent content);
 
         /// <summary>
         /// Appends a <see cref="string"/> value. The value is treated as unencoded as-provided, and will be HTML
diff --git a/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderExtensionsTest.cs b/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderExtensionsTest.cs
index 9355d507d3..ff201b494c 100644
--- a/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderExtensionsTest.cs
+++ b/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderExtensionsTest.cs
@@ -374,7 +374,7 @@ namespace Microsoft.AspNet.Html.Test
                 return this;
             }
 
-            public IHtmlContentBuilder Append(IHtmlContent content)
+            public IHtmlContentBuilder AppendHtml(IHtmlContent content)
             {
                 Entries.Add(content);
                 return this;
diff --git a/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderTest.cs b/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderTest.cs
index 4eee28e219..c9eda50adc 100644
--- a/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderTest.cs
+++ b/test/Microsoft.AspNet.Html.Abstractions.Test/HtmlContentBuilderTest.cs
@@ -65,7 +65,7 @@ namespace Microsoft.Extensions.Internal
             var writer = new StringWriter();
 
             // Act
-            content.Append(new TestHtmlContent("Hello"));
+            content.AppendHtml(new TestHtmlContent("Hello"));
 
             // Assert
             var result = Assert.Single(content.Entries);
@@ -81,7 +81,7 @@ namespace Microsoft.Extensions.Internal
             var content = new HtmlContentBuilder();
 
             // Act
-            content.Append(new TestHtmlContent("hello"));
+            content.AppendHtml(new TestHtmlContent("hello"));
             content.Append("Test");
 
             // Assert
@@ -95,7 +95,7 @@ namespace Microsoft.Extensions.Internal
         {
             // Arrange
             var content = new HtmlContentBuilder();
-            content.Append(new TestHtmlContent("hello"));
+            content.AppendHtml(new TestHtmlContent("hello"));
             content.Append("Test");
 
             // Act
@@ -111,7 +111,7 @@ namespace Microsoft.Extensions.Internal
             // Arrange
             var content = new HtmlContentBuilder();
             var writer = new StringWriter();
-            content.Append(new TestHtmlContent("Hello"));
+            content.AppendHtml(new TestHtmlContent("Hello"));
             content.Append("Test");
 
             // Act