diff --git a/Semester 2/Database Systems/Week 1/Week 1 Database Systems.md b/Semester 2/Database Systems/Week 1/Week 1 Database Systems.md
index 447fcc2..4bc2ac6 100644
--- a/Semester 2/Database Systems/Week 1/Week 1 Database Systems.md	
+++ b/Semester 2/Database Systems/Week 1/Week 1 Database Systems.md	
@@ -34,4 +34,4 @@ Purpose is to transform a query written in a high level language into correct an
 - Move SELECT operations down the tree
 - Apply more restrictive SELECT operations first ( eg. equalities before range queries )
 - Replace Cartesian products followed by selection with theta joins ( eg. *sigma(f) ( RxS )* -> *R theta(f) S* )
-- Move PROJECT operations down the query tree ( add project operations as inputs to theta joins )
\ No newline at end of file
+- Move PROJECT operations down the query tree ( add project operations as inputs to theta joins ).
\ No newline at end of file