Index: wordpress-importer.php
===================================================================
--- wordpress-importer.php	(revision 461436)
+++ wordpress-importer.php	(working copy)
@@ -539,7 +539,7 @@
 			$post_type_object = get_post_type_object( $post['post_type'] );
 
 			$post_exists = post_exists( $post['post_title'], '', $post['post_date'] );
-			if ( $post_exists ) {
+			if ( $post_exists && get_post_type( $post_exists ) == $post['post_type'] ) {
 				printf( __('%s “%s” already exists.', 'wordpress-importer'), $post_type_object->labels->singular_name, esc_html($post['post_title']) );
 				echo '<br />';
 				$comment_post_ID = $post_id = $post_exists;