diff --git a/index_installation.rst b/index_installation.rst
index d67e21f5a8e96f03d71503dfb958a15b5cfc884c..4b8efe42f79f7e92b2f747a01a0a9d628fab6141 100644
--- a/index_installation.rst
+++ b/index_installation.rst
@@ -1,4 +1,4 @@
-Installation 
+    Installation 
 ===========
 
 .. toctree::