diff --git a/xml/System.Reflection.PortableExecutable/ResourceSectionBuilder.xml b/xml/System.Reflection.PortableExecutable/ResourceSectionBuilder.xml
index 1b5e235164b..d00cef7f4ed 100644
--- a/xml/System.Reflection.PortableExecutable/ResourceSectionBuilder.xml
+++ b/xml/System.Reflection.PortableExecutable/ResourceSectionBuilder.xml
@@ -17,7 +17,7 @@
   </Base>
   <Interfaces />
   <Docs>
-    <summary>To be added.</summary>
+    <summary>Defines the base class for a PE resource section builder. Derive from <see cref="T:System.Reflection.PortableExecutable.ResourceSectionBuilder" /> to provide serialization logic for native resources.</summary>
     <remarks>To be added.</remarks>
   </Docs>
   <Members>
@@ -37,7 +37,7 @@
       </AssemblyInfo>
       <Parameters />
       <Docs>
-        <summary>To be added.</summary>
+        <summary>Initializes a new instance of the <see cref="T:System.Reflection.PortableExecutable.ResourceSectionBuilder" /> class.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -64,9 +64,9 @@
         <Parameter Name="location" Type="System.Reflection.PortableExecutable.SectionLocation" Index="1" FrameworkAlternate="netcore-1.1;netcore-2.0;netcore-2.1;netcore-2.2;netcore-3.0" />
       </Parameters>
       <Docs>
-        <param name="builder">To be added.</param>
-        <param name="location">To be added.</param>
-        <summary>To be added.</summary>
+        <param name="builder">A blob that contains the data to serialize.</param>
+        <param name="location">The location to which to serialize <paramref name="builder" />.</param>
+        <summary>Serializes the specified resource.</summary>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>