Index: wp-includes/class-wp.php
===================================================================
--- wp-includes/class-wp.php	(revision 32084)
+++ wp-includes/class-wp.php	(working copy)
@@ -581,7 +581,7 @@
 			}
 
 			// Don't 404 for these queries either.
-			if ( is_home() || is_search() || is_feed() ) {
+			if ( is_home() || is_search() || ( is_feed() && !is_singular() ) ) {
 				status_header( 200 );
 				return;
 			}