diff --git a/Resources/doc/usage.md b/Resources/doc/usage.md
index 37514b3..588532c 100644
--- a/Resources/doc/usage.md
+++ b/Resources/doc/usage.md
@@ -160,7 +160,7 @@ fos_elastica:
         site:
             settings:
                 index:
-                  analysis:
+                    analysis:
                         analyzer:
                             my_analyzer:
                                 type: snowball