diff --git a/template-tags.php b/template-tags.php
index 95a41f1a..7d2eb0ce 100644
--- a/template-tags.php
+++ b/template-tags.php
@@ -125,8 +125,10 @@ function coauthors__echo( $tag, $type = 'tag', $separators = array(), $tag_args
 		}
 
 		// Fallback to user_login if we get something empty
-		if ( empty( $author_text ) ) {
-			$author_text = $i->current_author->user_login;
+		if ( empty( $author_text ) && is_object( $i->current_author ) && ! empty( $i->current_author->user_login ) ) {
+			if(!is_bool($i->current_author)){
+				$author_text = $i->current_author->user_login;
+			}
 		}
 
 		// Append separators