diff --git a/README.rst b/README.rst
index b29fafc6..f0bf8640 100644
--- a/README.rst
+++ b/README.rst
@@ -270,7 +270,7 @@ explanation to help a newbie find their way around.
 
     cd Phoenix
     git submodule init
-    git submodule update --recursively
+    git submodule update --recursive
 
 * **sip/gen**: The code (.sip files) produced by the ETG scripts is placed
   in this folder.