diff --git a/docs/src/index.rst b/docs/src/index.rst
index 1234f4db..efa7a509 100644
--- a/docs/src/index.rst
+++ b/docs/src/index.rst
@@ -2,7 +2,7 @@
 Source-Code
 ===========
 
-This is a partial documentation of our source code. We are not aiming to document
+This is a partial documentation of our source code.  We are not aiming to document
 every item from the source code, but we will add documentation when requested.