diff --git a/docs/install.md b/docs/install.md
index 741899f1..2d4961a9 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -91,6 +91,6 @@ may want to add an index. For that, you should do so:
 
 ## Optimisations
 
-To speed up uMap homepage rendering on a large instance, the following index can be added tas well (make sure you set the center to your default instance map center):
+To speed up uMap homepage rendering on a large instance, the following index can be added as well (make sure you set the center to your default instance map center):
 
     CREATE INDEX leaflet_storage_map_optim ON leaflet_storage_map (modified_at) WHERE ("leaflet_storage_map"."share_status" = 1 AND ST_Distance("leaflet_storage_map"."center", ST_GeomFromEWKT('SRID=4326;POINT(2 51)')) > 1000.0);