diff --git a/src/IDF/Scm/Svn.php b/src/IDF/Scm/Svn.php
index 9abf01b..ecdb073 100644
--- a/src/IDF/Scm/Svn.php
+++ b/src/IDF/Scm/Svn.php
@@ -171,7 +171,7 @@ class IDF_Scm_Svn
             if ($file['type'] == 'blob') {
                 $file['size'] = (string) $entry->size;
             }
-            $file['author'] = $entry->commit->author;
+            $file['author'] = (string) $entry->commit->author;
             $file['perm'] = '';
             $res[] = (object) $file;
         }